8 Common Zoom Network Issues & How to Fix Them

Zoom has become a lifeline for remote work, virtual meetings, and online collaboration. But even the best tools can crumble when network performance takes a hit. For remote users, nothing is more frustrating than a Zoom call that freezes, lags, or drops mid-conversation.

The truth is, most Zoom (or AWS because Zoom is supported by AWS) performance issues aren’t caused by the platform itself — they’re rooted in network problems. Whether it’s an unstable Internet, high latency, or bandwidth-hogging apps, network issues can turn a smooth meeting into a frustrating experience. While some problems are user-related (like using Wi-Fi in a weak signal area), others come from ISP instability or network congestion.

For senior management, these disruptions aren’t just annoying — they’re costly. Dropped calls and poor audio quality can delay decisions, reduce productivity, and even harm professional relationships. That’s why understanding and addressing Zoom network issues is critical for businesses of all sizes.

How many times have you been on a Zoom call, only to have the video freeze, the audio cut out, or the call drop entirely? If you’re nodding your head, you’re not alone. Zoom is a fantastic tool, but its performance is only as good as the network behind it. And when the network struggles, your Zoom calls pay the price.

In this section, we’ll dive into the most common Zoom issues that could be disrupting your calls.

We’ll explore:

• What these issues look like → so you can spot them quickly.
• Why they’re happening → so you can understand the root cause.
• How to fix them → so you can get back to smooth, uninterrupted meetings.

By the end, you’ll have the tools and knowledge to tackle these problems head-on — whether you’re troubleshooting your home office setup or optimizing an entire corporate network. Ready to get started? Let’s dive in.

Has this ever happened to you? You’re in the middle of an important Zoom meeting, and suddenly, the video freezes. The audio cuts out, and you’re left staring at a spinning loading icon. Or worse, the call drops entirely, and you’re forced to reconnect. If this sounds familiar, you’re likely dealing with an unstable internet connection.

Here’s how you can spot this issue:

• Zoom calls randomly freeze, stutter, or disconnect.
• You see the dreaded warning: “Your Internet Connection is Unstable”
• Video and audio cut in and out, making it nearly impossible to communicate effectively.

Zoom connectivity issues or unstable Internet connection can stem from several factors. Let’s break them down:

1. Weak Wi-Fi Signal:

If you’re too far from your router, or if walls, furniture, or other devices are causing interference, your Wi-Fi signal can weaken. This leads to inconsistent performance, especially during bandwidth-heavy tasks like Zoom calls.

2. ISP Instability:

Your Internet Service Provider (ISP) might be experiencing fluctuations in speed, peak-hour slowdowns, or even regional outages. These issues are out of your control but can significantly impact Zoom's performance.

3. Background Applications Using Bandwidth:

File downloads, streaming services, cloud backups, or even automatic updates can hog your bandwidth, leaving little for Zoom. This is especially common in households or offices with multiple devices connected to the same network.

4. Router or Modem Issues:

Outdated firmware, overheating, or network congestion can cause your router or modem to underperform. Over time, these issues can lead to frequent disconnections or slowdowns.

The good news? Most of these issues are fixable. Here’s what you can do:

• Use a Network Monitoring Tool: It’s a first step because you need to monitor your network to first understand where the unstable Internet is coming from and why in order to troubleshoot. Tools like Obkio’s Network Performance Monitoring can help you identify whether the instability is caused by your local network or your ISP. By continuously monitoring your connection, you can pinpoint the root cause and take action before it disrupts your next Zoom call.
• Use a Wired Connection: Wi-Fi is convenient, but it’s not always reliable. Switching to a wired Ethernet connection can provide a more stable and consistent connection for Zoom calls.
• Restart Your Router/Modem: Sometimes, all your router needs is a quick reboot. Restarting it can refresh the connection and resolve temporary glitches.
• Check for ISP Issues: Run a speed test to compare the results with your ISP plan to see if you’re getting the speeds you’re paying for. If not, contact your ISP for support.
• Limit Bandwidth-Heavy Apps: Pause large downloads, disable auto-sync, and close unnecessary apps that might be consuming bandwidth in the background.
• Optimize Wi-Fi Placement: Move closer to your router or eliminate physical obstructions (like walls or furniture) that could weaken the signal. If you’re in a large space, consider using a mesh Wi-Fi system to extend coverage.

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Have you ever been on a Zoom call where someone’s speech is delayed, or their video seems out of sync? This frustrating experience is often caused by high latency — a delay in data transmission between your device and Zoom’s servers.

Here’s how you can identify high latency:

• Delayed speech: You hear someone’s words a second or two after they speak.
• Out-of-sync video: Lip movements don’t match the audio.
• Awkward pauses: Conversations feel unnatural because of the delay.

To understand latency, think of it like a phone call. With low latency (good), the conversation flows naturally, just like talking face-to-face. With high latency (bad), it feels like you’re talking over a walkie-talkie, with awkward gaps and overlaps.

Screenshot from Obkio showing high latency, packet loss and jitter affecting Zoom

High latency affecting your Zoom calls can be caused by several factors:

1. Slow Internet Speeds:

If your upload or download speeds are too slow, data takes longer to travel between your device and Zoom’s servers. This delay results in laggy video and audio.

2. Long-Distance Connections:

If you’re connecting to a Zoom server that’s geographically far away, the data has to travel a longer distance, increasing latency.

3. Overloaded Networks:

When too many devices or applications are using the same network, it can become congested. This congestion slows down data transmission, leading to higher latency.

Fixing high latency often involves optimizing your network and connection. Here’s what you can do:

• Monitor Latency with Obkio: Use Obkio’s Network Performance Monitoring tool to measure latency in real-time. This helps you identify whether the issue is with your local network, your ISP, or Zoom’s servers.
• Test Your Internet Connection: Use Obkio’s network speed monitoring tool to check your upload and download speeds. Zoom recommends a minimum of 1.5 Mbps for HD video calls. If your speeds are lower, consider upgrading your internet plan.
• Switch to a Wired Connection: Wi-Fi is convenient but can introduce latency due to interference or signal strength issues. A wired Ethernet connection is more stable and reduces delays.
• Enable Quality of Service (QoS): If you’re using a router that supports QoS, configure it to prioritize Zoom traffic. This ensures that Zoom gets the bandwidth it needs, even if other devices are using the network.
• Choose a Closer Zoom Server: Zoom automatically selects the best server for your location, but you can manually check and switch servers in the settings if needed.
• Reduce Network Congestion: Limit the number of devices using the network during Zoom calls. Pause bandwidth-heavy activities like streaming, gaming, or large downloads.

Have you ever been on a Zoom call where the audio cuts out, words go missing, or voices sound robotic? This is a classic sign of packet loss — a network issue where data packets fail to reach their destination.

Here’s how you can identify packet loss:

• Missing words: Parts of sentences seem to disappear, making it hard to follow the conversation.
• Robotic audio: Voices sound distorted, mechanical, or broken.
• Intermittent audio: The audio cuts in and out, creating gaps in communication.

Think of packet loss like a jigsaw puzzle. When all the pieces (data packets) arrive, the picture (your Zoom call) is clear and complete. But when pieces go missing, the picture becomes fragmented and hard to understand.

Screenshot from Obkio's Network Response Time & VoIP Quality Graphs showing high latency, packet loss and jitter affecting Zoom

Packet loss is one of the most common network issues and can happen for several reasons. When it comes to unified communications applications like Zoom, even the smallest amount of packet loss can seriously affect voice and video. Packet loss can occur for several reasons:

1. Wi-Fi Interference:

Weak Wi-Fi signals, physical obstructions (like walls), or interference from other devices (like microwaves or cordless phones) can cause data packets to get lost in transit.

2. Overloaded Networks:

When too many network devices or applications are using the same network, it can become congested. This congestion can lead to dropped packets, especially during high-bandwidth activities like Zoom calls.

3. Poor ISP Quality:

If your Internet Service Provider (ISP) is experiencing technical issues or network congestion, it can result in packet loss. This is often out of your control but can significantly impact call quality.

How to Fix It

Fixing packet loss requires addressing the root cause of the issue. Here’s what you can do:

• Use a Network Monitoring Tool: Tools like Obkio can help you detect packet loss in real-time and pinpoint its source — whether it’s your local network, Wi-Fi, or ISP. This makes troubleshooting faster and more effective.
• Switch to a Wired Connection: Wi-Fi is more prone to interference, which can lead to packet loss. A wired Ethernet connection is more stable and reliable for Zoom calls.
• Optimize Wi-Fi Placement: Move closer to your router or eliminate physical obstructions that could weaken the signal. If you’re in a large space, consider using a Wi-Fi extender or mesh system to improve coverage.
• Reduce Network Congestion: Limit the number of devices using the network during Zoom calls. Pause bandwidth-heavy activities like streaming, gaming, or large downloads.
• Check for ISP Issues: Run a speed test and monitor your connection for packet loss using tools like Obkio’s Network Performance Monitoring. If the issue is on your ISP’s end, contact them for support.
• Update Router Firmware: Outdated router firmware can cause performance issues. Check for updates and install them to improve stability.

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Have you ever been on a Zoom call where the audio skips, the video stutters, or the call quality feels uneven? This is often caused by jitter — a network issue where data packets arrive at inconsistent intervals. Jitter is one of the most common network issues affecting Voice and video applications and causes some of the most disruptive side effects.

Here’s how you can identify jitter:

• Uneven audio: Voices sound choppy or robotic, with gaps or skips in the conversation.
• Stuttering video: The video freezes momentarily or jumps awkwardly.
• Inconsistent call quality: The call feels unstable, with periods of clarity followed by sudden disruptions.

Think of jitter like a delivery service. If packages (data packets) arrive at regular intervals, everything runs smoothly. But if they arrive unpredictably — some early, some late — it creates chaos. The same happens with your Zoom call when jitter occurs.

Screenshot from Obkio showing Jitter and VoIP Quality issues

Jitter is typically caused by instability in your network. Here are the most common culprits:

1. Poor Network Stability:

If your internet connection fluctuates frequently, it can cause delays in data packet delivery, leading to jitter.

2. Wi-Fi Fluctuations:

Weak Wi-Fi signals, interference from other devices, or physical obstructions (like walls) can disrupt the flow of data packets, causing inconsistent arrival times.

4. Router Issues:

Outdated firmware, overheating, or network congestion can cause your router to struggle with managing data traffic, resulting in jitter.

Fixing VoIP jitter requires stabilizing your network and ensuring consistent data flow. Here’s what you can do:

• Monitor Jitter with Obkio: Use Obkio’s Network Performance Monitoring tool to measure jitter in real-time. This helps you identify whether the issue is with your local network, Wi-Fi, or ISP.
• Switch to a Wired Connection: Wi-Fi is more susceptible to fluctuations and interference. A wired Ethernet connection provides a more stable and consistent connection, reducing jitter.
• Optimize Wi-Fi Placement: Move closer to your router or eliminate physical obstructions that could weaken the signal. If you’re in a large space, consider using a Wi-Fi extender or mesh system to improve coverage.
• Enable Quality of Service (QoS): If your router supports QoS, configure it to prioritize Zoom traffic. This ensures that Zoom gets the bandwidth it needs, even if other devices are using the network.
• Update Router Firmware: Outdated firmware can cause performance issues. Check for updates and install them to improve stability and reduce jitter.
• Check for ISP Issues: If jitter persists, contact your ISP to check for network instability or congestion on their end.

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Have you ever been on a Zoom call where the video suddenly freezes, the resolution drops, or the screen becomes pixelated? This is often caused by insufficient bandwidth — a lack of available network resources to handle the data demands of your Zoom call. Lacking bandwidth is one of the issues that most people are familiar with when it comes to Internet-supported applications. People will often blame bandwidth issues when their applications are slow or laggy.

Here’s how you can identify bandwidth limitations:

• Low-resolution video: The video quality drops, making it hard to see details or read shared content.
• Delays or buffering: The call feels sluggish, with delays in audio or video.
• Frozen screens: The video freezes entirely, forcing you to restart the call or wait for it to recover.

Think of bandwidth like a highway. If there are too many cars (devices and apps) on the road, traffic slows down, and some cars might even get stuck. The same happens with your low network bandwidth Zoom call when there’s not enough bandwidth to go around.

Screenshot of Obkio's Network Performance, Network Device & Application Performance Graphs showing network issues affecting Zoom

Bandwidth limitations are often caused by competing demands on your network. This is especially critical for applications like Zoom, which are very bandwidth-intensive. Here are the most common reasons:

1. Multiple Devices Sharing a Connection:

If several devices (like smartphones, tablets, or smart TVs) are using the same network, they can consume bandwidth, leaving little for Zoom.

2. Peak Internet Usage Times:

During busy hours (like evenings), your ISP’s network might become congested, reducing the available bandwidth for your Zoom calls.

3. Bandwidth-Heavy Applications:

Activities like streaming videos, downloading large files, or gaming can consume significant bandwidth, leaving Zoom with insufficient resources.

Fixing bandwidth limitations involves optimizing your network and prioritizing Zoom traffic.

Here’s what you can do:

• Monitor Bandwidth Usage with Obkio: Use Obkio’s Network Performance Monitoring tool to track bandwidth usage in real-time. This helps you identify which devices or apps are consuming the most bandwidth and take action to optimize your network.
• Test Your Internet Speed: Use a speed test tool (like Obkio’s network speed tool) to check your upload and download speeds. Zoom recommends a minimum of 1.5 Mbps for HD video calls. If your speeds are lower, consider upgrading your internet plan.
• Limit Bandwidth-Heavy Apps: Pause activities like streaming, gaming, or large downloads during Zoom calls. This frees up bandwidth for Zoom and improves call quality.
• Reduce the Number of Connected Devices: Disconnect devices that aren’t in use to reduce the load on your network.
• Enable Quality of Service (QoS): If your router supports QoS, configure it to prioritize Zoom traffic. This ensures that Zoom gets the bandwidth it needs, even if other devices are using the network.
• Lower Zoom Video Resolution: In Zoom’s settings, reduce the video resolution from 1080p to 720p. This lowers the bandwidth requirements and can help prevent freezing.

There’s nothing more frustrating than being in the middle of an important Zoom call, only to have it suddenly disconnect. Whether it’s a momentary drop or a complete call failure, these interruptions can derail productivity and leave everyone scrambling to reconnect.

Here’s how you can identify this issue:

• Sudden disconnections: The call drops unexpectedly, often with no warning.
• Frequent reconnections: You’re forced to rejoin the call multiple times.
• Error messages: You see warnings like “Zoom has disconnected” or “Reconnecting…”

Think of your Zoom call like a phone call. If the line is unstable, the call might drop entirely. The same happens with Zoom when your connection is unreliable or experiencing high packet loss.

Here are the most common reasons for unstable network connection Zoom calls issues:

1. ISP Problems:

If your Internet Service Provider (ISP) is experiencing outages, slowdowns, or technical issues, it can cause your Zoom call to drop.

2. VPN Interference:

Using a VPN can introduce delays and instability, especially if the VPN server is far away or overloaded. This can lead to frequent disconnections.

3. Wi-Fi Signal Issues:

Weak Wi-Fi signals, interference from other devices, or physical obstructions (like walls) can cause your connection to drop intermittently.

4. High Packet Loss:

If too many data packets are lost during transmission, Zoom may struggle to maintain the connection, leading to disconnections.

Screenshot of Obkio Vision Network Map showing a disconnection towards Zoom

Fixing Zoom disconnections requires stabilizing your connection and addressing the root cause. Here’s what you can do:

• Monitor Your Network Connection as a Whole: To identify any issues coming from your internal network or your ISP's network that may cause your Internet to be unstable. You can use your network monitoring tool to identify the causes listed above.
• Switch to a Wired Connection: Wi-Fi is more prone to interference and signal drops. A wired Ethernet connection provides a more stable and reliable connection for Zoom calls.
• Disable or Optimize Your VPN: If you’re using a VPN, try disabling it during Zoom calls. If you must use a VPN, choose a server that’s closer to your location to reduce delays.
• Check for ISP Issues: Run a speed test and monitor your connection for stability using tools like Obkio’s Network Performance Monitoring. If the issue is on your ISP’s end, contact them for support.
• Optimize Wi-Fi Placement: Move closer to your router or eliminate physical obstructions that could weaken the signal. If you’re in a large space, consider using a Wi-Fi extender or mesh system to improve coverage.
• Monitor Packet Loss: High packet loss can cause disconnections. Use Obkio to detect packet loss in real-time and identify its source — whether it’s your local network, Wi-Fi, or ISP.
• Restart Your Router/Modem: Sometimes, a simple restart can resolve temporary glitches and improve connection stability.

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Have you ever noticed that your Zoom calls slow down, freeze, or disconnect when using a VPN? Or perhaps your firewall is blocking Zoom entirely, making it impossible to join calls? These issues are often caused by VPN and firewall interference, which can disrupt the flow of data between your device and Zoom’s servers.

Here’s how you can identify these issues:

• Slow Zoom performance: Calls feel sluggish, with delays in audio or video.
• Frequent disconnections: The call drops unexpectedly, especially when using a VPN.
• Connection errors: You see messages like “Cannot connect to Zoom”.

Think of your VPN and firewall like gatekeepers. While they’re designed to protect your network, they can sometimes block or delay legitimate traffic — like your Zoom call — if not configured properly.

Screenshot of Obkio showing Network and Network Device performance

VPNs and firewalls can interfere with Zoom in several ways:

1. VPN Routing Delays:

VPNs route your internet traffic through remote servers, which can introduce delays and instability. If the VPN server is far away or overloaded, it can slow down your Zoom call or cause disconnections.

2. Firewall Restrictions:

Firewalls are designed to block unauthorized traffic, but they can sometimes mistake Zoom’s data for a threat. This can block Zoom traffic entirely or cause instability during calls.

4. Network Configuration Issues:

If your VPN or firewall isn’t configured to allow Zoom traffic, it can disrupt the connection or prevent Zoom from working altogether.

Fixing VPN and firewall interference involves adjusting your network settings to prioritize Zoom traffic. Here’s what you can do:

• Disable or Optimize Your VPN: If possible, disable your VPN during Zoom calls. If you must use a VPN, choose a server that’s closer to your location to reduce delays.
• Whitelist Zoom in Your Firewall: Configure your firewall to allow Zoom traffic by whitelisting Zoom’s IP addresses and ports. Zoom provides a list of these on their support site.
• Check Network Configuration: Ensure that your VPN and firewall are configured to prioritize Zoom traffic. If you’re unsure, consult your IT team or network administrator.
• Test Your Connection: Use Obkio’s Network Performance Monitoring tool to test your connection while using a VPN or firewall. This helps you identify whether the issue is caused by routing delays or blocked traffic.
• Update VPN and Firewall Software: Outdated software can cause compatibility issues. Make sure your VPN and firewall are running the latest versions to ensure optimal performance.
• Use Split Tunneling (if supported): Some VPNs support split tunnelling, which allows you to route Zoom traffic outside the VPN while keeping other traffic secure. This can reduce delays and improve call quality.

You’re ready to join a Zoom meeting, but instead of entering the call, you’re stuck staring at the “Connecting…” screen. Or worse, Zoom fails to connect entirely, leaving you frustrated and unable to join. This issue is often caused by network-related problems that prevent Zoom from establishing a stable connection.

Here’s how you can identify this issue:

• Stuck on “Connecting”: The loading screen doesn’t progress, no matter how long you wait.
• Connection errors: You see messages like “Poor Network Connection”, “Cannot connect to Zoom” or “Connection failed.”
• Failed logins: Zoom struggles to sign you in or authenticate your account.

Think of this issue as trying to open a locked door. If the key (your connection) doesn’t work, you’re stuck outside. The same happens with Zoom when it can’t establish a connection to its servers.

Zoom connectivity issues can stem from several factors:

1. Slow Internet Speeds:

If your internet connection is too slow, Zoom may struggle to establish a connection or get stuck on the “Connecting” screen.

2. Firewall Blocking Zoom:

Firewalls can sometimes block Zoom’s servers, preventing the app from connecting. This is common in corporate or school networks with strict security settings.

3. DNS Resolution Issues:

If your device can’t resolve Zoom’s domain names to IP addresses (due to DNS issues), it won’t be able to connect to Zoom’s servers.

4. Outdated Zoom Versions:

Older versions of Zoom may have bugs or compatibility issues that prevent them from connecting properly.

5. Network Congestion:

If your network is overloaded with too many devices or bandwidth-heavy apps, Zoom may struggle to establish a connection.

How to Fix Zoom Connectivity Issues

Fixing Zoom connection issues involves troubleshooting your network and ensuring Zoom can access the necessary resources. Here’s what you can do:

• Monitor Your Zoom Network Connectivity: Tools like Obkio’s Network Performance Monitoring can help you identify whether the issue is caused by slow Internet, firewall restrictions, or network congestion.
• Test Your Internet Connection: Run a speed test to ensure your speeds meet Zoom’s minimum requirements (1.5 Mbps for HD video calls).
• Whitelist Zoom in Your Firewall: Configure your firewall to allow Zoom traffic by whitelisting Zoom’s IP addresses and ports. Zoom provides a list of these on their support site.
• Check DNS Settings: If you’re experiencing DNS resolution issues, try switching to a public DNS server like Google DNS (8.8.8.8) or Cloudflare DNS (1.1.1.1).
• Update Zoom to the Latest Version: Ensure you’re using the latest version of Zoom. Updates often include bug fixes and performance improvements that can resolve connection issues.
• Reduce Network Congestion: Limit the number of devices using the network and pause bandwidth-heavy apps like streaming or downloads.
• Restart Your Router/Modem: A simple restart can resolve temporary glitches and refresh your connection.

Zoom network issues can be frustrating, but the good news is that diagnosing and troubleshooting them doesn’t have to be complicated. With the right tools and approach, you can quickly pinpoint the root cause of the problem and take action to resolve it.

The key to effective troubleshooting is proactive monitoring. Instead of waiting for issues to disrupt your Zoom calls, you can identify and address them before they impact your meetings. And the best part? It’s super easy with Obkio’s Network Performance Monitoring tool.

• 14-day free trial of all premium features
• Deploy in just 10 minutes
• Monitor performance in all key network locations
• Measure real-time network metrics
• Identify and troubleshoot live network problems

Because applications like Zoom (and other UC apps) are so sensitive to network issues, you need a tool that continuously monitors your network performance.

A network monitoring tool like Obkio

• Continuously monitors your network in all network locations (including workstations and over the Internet)
• It uses synthetic traffic to proactively identify issues before they affect users

Obkio’s tool is designed to make network monitoring simple and effective. Read the complete article for more details.

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Here’s how it works:

Obkio uses lightweight software monitoring agents that you can deploy in key network locations — like your office, data center, or cloud environment. You can deploy agents on user's workstations to monitor Zoom performance in all locations (whether it's on-site or remote office locations), and over the Internet so you can identify if issues are network, user or Internet-related.

These agents continuously monitor network performance, providing real-time insights into your connection.

The Monitoring Agents simulate synthetic traffic to mimic Zoom traffic and network traffic on other critical applications, giving you a clear picture of your network’s performance. Obkio uses this synthetic traffic to continuously monitor performance and key network metrics. This helps you identify issues like latency, packet loss, jitter, and bandwidth limitations before they affect your Zoom calls.

Obkio’s dashboard provides detailed metrics and alerts, making it easy to diagnose problems. Whether it’s an ISP issue, network congestion, or a faulty router, Obkio helps you pinpoint the exact cause.

You can set up automatic alerts based on thresholds to identify even the smallest performance drop indicating a performance issue. Since applications like Zoom are so sensitive to network issues, Obkio allows you to get notified of even small issues fast.

Even the smallest amount of packet loss or jitter can seriously affect your Zoom calls.

With Obkio, you don’t have to wait for users to report problems. Your Network Monitoring tool alerts you to performance degradation in real-time, allowing you to troubleshoot and resolve issues before they disrupt your Zoom meetings.

• Easy to Use: Deploy agents in minutes and start monitoring right away.
• Proactive Alerts: Get notified of issues before they impact your calls.
• Comprehensive Insights: Monitor everything from latency and packet loss to jitter and bandwidth usage.
• End-to-End Visibility: Track performance across your entire network, from local devices to cloud services.

Diagnose ISP Problems, Congestion, and More

Obkio doesn’t just monitor your local network — it also helps you identify issues with your ISP. For example:

1. ISP Instability:

Detect fluctuations in your internet connection and hold your ISP accountable.

2. Network Congestion:

Identify bandwidth-heavy apps or devices that are slowing down your Zoom calls.

3. Performance Fluctuations:

Monitor your network over time to spot patterns and recurring issues.

Get Started with Obkio

Ready to take control of your Zoom performance? Obkio makes it easy to monitor, diagnose, and troubleshoot network issues — so you can focus on what matters most: seamless communication.

1. Test Your Internet Connection

• Use Speed Test Tools: Speed Tests can help you check your download/upload speeds, latency, and jitter.
• Meet Zoom’s Requirements: Ensure your connection meets Zoom’s minimum network requirements (1.5 Mbps for HD video).
• Check for Consistency: Run speed tests multiple times throughout the day to check for fluctuations in performance.

2. Check for Network Congestion

• Identify Bandwidth-Hogging Apps: Are multiple devices streaming, gaming, or downloading large files at the same time? Check if apps like YouTube, Netflix, or cloud backups are consuming too much bandwidth.
• Use Obkio to Detect Congestion: Obkio’s network monitoring tool can automatically detect network congestion and help you identify which devices or apps are causing the problem.

3. Use Zoom’s Built-in Connection Stats

• Access Zoom’s Statistics: Go to Settings → Statistics in Zoom to check metrics like packet loss, latency, and jitter.
• Look for Red Flags: High latency (>100ms) or packet loss (>5%) are clear indicators of network issues that need to be addressed.

4. Check for Packet Loss & Jitter

• Use Obkio for Real-Time Monitoring: Obkio’s tool can detect packet loss, jitter, and latency spikes in real time, helping you troubleshoot issues quickly.
• Run a Ping Test: Use a command like ping 8.8.8.8 -t to check for dropped packets. If jitter is above 30ms, your calls may sound robotic or choppy.

5. Monitor Internet Stability Over Time

• Use Continuous Monitoring: Tools like Obkio allow you to monitor your internet connection 24/7, helping you identify if instability occurs at specific times (e.g., evening peak hours).
• Contact Your ISP: If issues are frequent, share your monitoring data with your ISP to hold them accountable and request troubleshooting support.

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Now that you’ve identified the root cause of your Zoom network issues, it’s time to take action. Whether you’re dealing with unstable connections, high latency, or bandwidth limitations, these practical steps will help you optimize your network and ensure smooth, uninterrupted Zoom calls.

A stable network is the foundation of a great Zoom experience. Here’s how to optimize it:

• Prioritize Wired Connections:

Wi-Fi is convenient, but it’s prone to interference and signal drops. For the most stable connection, use a wired Ethernet cable whenever possible.

• Restart Your Router/Modem:

Sometimes, a simple restart can resolve temporary glitches and refresh your connection. Unplug your router and modem, wait 30 seconds, and plug them back in.

• Update Firmware:

Outdated router or modem firmware can cause performance issues. Check for updates on the manufacturer’s website and install them to improve stability and security.

Bandwidth-hogging apps can slow down your Zoom calls. Here’s how to keep your network running smoothly:

• Limit Bandwidth-Heavy Apps:

Pause activities like streaming Netflix, downloading large files, or gaming during Zoom calls. These apps are often the reason why Zoom network bandwidth is low.

• Enable Quality of Service (QoS):

If your router supports QoS, configure it to prioritize Zoom traffic. This ensures that Zoom gets the bandwidth it needs, even if other devices are using the network.

Zoom’s default settings might not be ideal for your network. Here’s how to tweak them for better performance:

• Lower Video Resolution:

Go to Settings → Video in Zoom and lower the resolution from 1080p to 720p. This reduces bandwidth usage and can prevent freezing or lag.

• Disable HD Video and Virtual Backgrounds:

HD video and virtual backgrounds require more bandwidth. Disable these features in Zoom settings to free up resources for a smoother call.

If you must use Wi-Fi, take steps to improve its stability:

• Move Closer to the Router:

Weak Wi-Fi signals can cause instability. Move closer to your router or eliminate physical obstructions (like walls or furniture) that could weaken the signal.

• Use a Wi-Fi Extender or Mesh System:

If you’re in a large space, a Wi-Fi extender or mesh system can improve coverage and signal strength.

• Switch to a Wired Connection:

For the most reliable performance, use an Ethernet cable to connect directly to your router.

Keeping your software and hardware up to date is crucial for optimal performance:

• Update Zoom:

Ensure you’re using the latest version of Zoom. Updates often include bug fixes and performance improvements that can resolve connection issues.

• Update Router Firmware:

Check your router manufacturer’s website for firmware updates. These updates can improve connectivity, security, and overall performance.

Sometimes, small changes can make a big difference. Here are some quick fixes to try:

• Switch to a Wired Ethernet Connection:

Wi-Fi fluctuations can cause instability. A wired connection is more reliable for Zoom calls.

• Restart Your Modem & Router:

A quick restart can refresh your connection and resolve temporary issues.

• Reduce Network Congestion:

Pause downloads, limit streaming, and disconnect unused devices to free up bandwidth.

• Move Closer to the Router or Use 5GHz Wi-Fi:

If you’re using Wi-Fi, move closer to the router or switch to a 5GHz network for better performance and less interference.

• Check with Your ISP:

If issues persist, contact your ISP to check for maintenance issues, slowdowns, or plan upgrades.

For businesses and IT teams, Zoom network issues aren’t just frustrating — they’re costly. Dropped calls, laggy video, and poor audio quality can disrupt workflows, delay decisions, and harm productivity. The good news? With the right strategies and tools, you can proactively prevent these issues and ensure seamless Zoom performance for your entire organization.

Here’s how businesses and IT teams can avoid Zoom network issues:

Quality of Service (QoS) is a powerful feature that allows you to prioritize Zoom traffic over other applications. This ensures that Zoom gets the bandwidth it needs, even during peak usage times.

How to Use QoS:

• Configure Your Router:

Access your router’s settings and enable QoS. Assign high priority to Zoom traffic to reduce delays and packet loss.

• Allocate Dedicated Bandwidth:

Reserve a portion of your network’s bandwidth specifically for VoIP and video calls. This minimizes the risk of congestion and ensures smooth Zoom performance.

Benefits of QoS:

1. Reduces latency and packet loss.
2. Improves call quality and stability.
3. Ensures consistent performance during high network usage.

Proactive monitoring is key to preventing Zoom issues before they disrupt your meetings. With Obkio’s Network Performance Monitoring, you can detect and resolve problems in real-time.

How Obkio Helps:

• Detect Latency, Packet Loss, and Jitter:

Obkio’s lightweight agents continuously monitor your network, providing real-time insights into performance metrics.

• Identify the Root Cause:

Is the issue caused by your ISP, local network, or external factors? Obkio helps you pinpoint the source of the problem quickly.

• Proactively Troubleshoot:

Receive alerts for performance degradation and take action before it impacts your Zoom calls.

Why Use Obkio?

1. Easy to deploy and use.
2. Provides end-to-end visibility across your network.
3. Helps you hold ISPs accountable for performance issues.

Firewalls and VPNs are essential for security, but they can sometimes interfere with Zoom traffic. Here’s how to configure them for better connectivity:

Configuring Firewalls:

• Whitelist Zoom’s IP Ranges and Ports:

Firewalls can block Zoom traffic if not configured properly. Whitelist Zoom’s IP addresses and ports to ensure uninterrupted connectivity. Zoom provides a list of these on its support site.

• Allow UDP Traffic:

Zoom uses UDP (User Datagram Protocol) for real-time communication. Ensure your firewall allows UDP traffic on the necessary ports.

• Optimizing VPNs:

Disable VPNs During Zoom Calls:

VPNs can introduce delays and instability. If possible, disable your VPN during Zoom calls.

• Switch to a Faster VPN Server:

If you must use a VPN, choose a server that’s closer to your location to reduce latency.

• Use Split Tunneling:

Some VPNs support split tunnelling, which allows you to route Zoom traffic outside the VPN while keeping other traffic secure.

• Why These Strategies Matter

For businesses, Zoom isn’t just a tool — it’s a critical part of daily operations. By implementing these strategies, you can:

1. Improve Productivity: Prevent disruptions and keep your team focused.
2. Enhance Communication: Ensure clear, stable calls with clients, partners, and remote teams.
3. Reduce IT Support Requests: Proactively address issues before they escalate.

With tools like Obkio and best practices like QoS and firewall optimization, you can take control of your network and ensure seamless Zoom performance for your entire organization.

Zoom has revolutionized the way we communicate, but its performance is only as good as the network behind it. From latency and packet loss to bandwidth limitations and VPN interference, network issues can turn a productive meeting into a frustrating experience.

The good news? Most Zoom network issues are preventable. By regularly monitoring your network, optimizing settings, and using tools like Obkio’s Network Performance Monitoring, you can stay one step ahead of disruptions. Whether you’re a remote worker, a network admin, or an IT professional, taking a proactive approach ensures that your Zoom calls are always clear, stable, and professional.

For ongoing issues, don’t hesitate to dig deeper. Use monitoring tools to pinpoint the root cause, and if problems persist, reach out to Zoom support or your IT team for further troubleshooting.

At the end of the day, seamless Zoom calls aren’t just about better technology — they’re about better communication, productivity, and collaboration. So take control of your network, optimize your setup, and make every Zoom call a success.

Your seamless Zoom journey awaits – let’s make it happen!

• 14-day free trial of all premium features
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• Monitor performance in all key network locations
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