VPN Troubleshooting: Common Issues and Solutions

VPN- A Virtual Private Network is a great way to mask or hide your IP address and, therefore, your online identity when browsing the internet.

However, sometimes, it may run into some issue that restricts you from connecting with a proxy server.

This can be due to various reasons, but you can fix it easily.

vpn troubleshooting and solutions

Here you will learn the reasons behind VPN connection issues and how to fix them.

So, if you want to fix VPN connection issues, continue reading.

What Are The Reasons For VPN Connection Issues?

Various reasons contribute to a VPN connection issue, ranging from technical glitches to misconfigurations.

VPN connection issues can be frustrating, disrupting the smooth flow of data and compromising your online security.

However, VPN connection issues can be resolved if you know their reasons.

Here are some of the reasons behind VPN connection issues.

1. Network Connectivity Challenges

Problems with network connectivity, such as unstable or slow internet connections, network congestion, or intermittent disruptions, are the most common causes of VPN connection issues.

A steady internet connection is essential for proper VPN functionality, and users may experience frequent disconnections or sluggish performance if their network is unreliable.

2. Firewall and Antivirus Interference

Firewalls and antivirus software interfere with VPN connections.

These security tools, designed to monitor and control network traffic, may unintentionally block or restrict VPN traffic.

Configuring firewall settings to permit VPN traffic can help users overcome this issue.

3. Incorrect VPN Configuration

Incorrect configuration settings are a common cause of VPN connection problems.

You must ensure accurate configuration of VPN client and server settings, including server address, authentication credentials, and encryption protocols.

Incorrect settings can lead to authentication failures, connection timeouts, or other connection issues.

4. Server Issues

VPN servers are crucial in facilitating secure connections.

Still, server outages, maintenance, or high server loads can lead to connection problems.

You may encounter difficulty connecting to the VPN service or experience slow performance during peak usage times.

Checking the VPN server’s status and opting for an alternative server can help resolve this issue.

5. Incompatible VPN Client Software

Compatibility issues between the VPN client software and the operating system or device can cause connection problems.

Using the latest compatible version of the VPN client and ensuring it aligns with the operating system can help avoid crashes, errors, or connection failures.

6. ISP Restrictions or Throttling

Some Internet Service Providers (ISPs) may restrict VPN usage, particularly in regions with strict Internet censorship.

You may face challenges connecting to a VPN or experience reduced speeds if your ISP blocks or limits VPN traffic.

Overcoming these restrictions may involve using alternative VPN protocols.

7. Network Address Translation (NAT) Challenges

Network Address Translation can complicate VPN connections, especially when multiple devices share the same public IP address.

NAT may interfere with proper VPN traffic routing, causing connection problems.

Configuring the VPN to work seamlessly with NAT or opting for NAT-friendly VPN protocols can resolve this issue.

8. Client-side software or Driver Issues

Problems with client-side software or drivers can contribute to VPN connection problems.

You must ensure your VPN client software is up-to-date and compatible with their operating system.

Addressing software requirements and updating network drivers can help resolve client-side issues.

How To Fix VPN Connection Issues?

You can fix VPN connection issues by identifying and addressing the cause of the problem.

However, identifying the exact cause of the connection issue can be tricky.

Therefore, I will list down a few fixes you can try if you have issues connecting to your VPN.  

Here are fixes of VPN connection issues.

Fix 1: Check Network Connectivity

Make sure that your internet connection is stable and fast.

If you use Wi-Fi, try connecting via a wired connection to rule out potential wireless issues.

Further, restart your router, VPN router or modem to refresh the connection if the issue persists.

Fix 2: Verify VPN Server Status

Check the status of the VPN server you are trying to connect to.

Sometimes, the servers are down for maintenance or experiencing issues.

In such situations, you will encounter connection problems.

Consider connecting to an alternative server.

Fix 3: Review VPN Configuration Settings

Double-check your VPN client and server configuration settings.

Ensure you have entered the correct server address, authentication credentials, and encryption protocols.

Incorrect configurations can lead to authentication failures or connection timeouts.

Fix 4:Update VPN Client Software

You must use the latest version of VPN client software.

Outdated software can contain bugs or need more compatibility.

Visit the official website of your VPN provider to download and install the latest version.

Fix 5: Check Firewall and Antivirus Settings

Firewalls and antivirus software can sometimes interfere with VPN connections. Review your firewall and antivirus settings, and make sure they allow VPN traffic.

Configure firewall rules to permit the necessary VPN protocols.

Fix 6: Try Different VPN Servers or Protocols

If you are experiencing issues with a specific server or protocol, connect to a different server or switch to an alternative VPN protocol.

Some networks may block certain protocols, so experimenting with different options can help.

Fix 7: Disable IPv6

IPv6 compatibility issues can cause VPN connection problems.

Disable IPv6 on your device and the VPN server if the issue persists.

Most VPN services primarily use IPv4, and disabling IPv6 can help avoid connection issues.

Fix 8: Restart VPN Service

Restart the VPN service on your device.

This will refresh the connection and resolve temporary glitches.

You can do this by restarting your device.

Fix 9: Contact VPN Support

Contact your VPN provider’s customer support when you have tried everything but are still experiencing connection issues.

They will provide specific guidance based on your situation and may have insights into server status or known issues.


VPN connection issues are common but can be frustrating as they prevent you from browsing the internet or accessing other sensitive information unidentified.

Ideally, resolving VPN connection issues requires you to identify the specific cause of the connection issues, which is impossible for some of you.

That is why I’ve listed down some ways for you to fix VPN connection issues.

So, follow the instructions above to troubleshoot and resolve VPN connection issues.

I hope the blog will help you fix the VPN connection issue and enjoy your online freedom without leaving behind any digital footprint.