Norton firewall allows access to Chrome although blocked when Nord vpn is running

Norton + Nord VPN may not play well together.

for example:
https://community.norton.com/t/norton-360-appearing-offline-with-nordvpn-active-windows-11/369765

https://community.norton.com/t/norton-360-v24-says-not-connected-when-pc-connect-to-internet-via-nordvpn/248318

https://community.norton.com/t/nordvpn/408544

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AI Overview
NordVPN and Norton Antivirus Plus can conflict because both are security programs that monitor and manage network traffic, leading to potential issues with VPN connections. To resolve conflicts, add NordVPN to Norton’s list of allowed apps, adjust Norton’s firewall settings to allow the VPN’s ports (like 443 and 500), or try using a different third-party antivirus if the conflict persists.

Why Conflicts Occur
Dual Security Scanning:
Both NordVPN and Norton Antivirus are designed to analyze and control internet traffic. This can lead to them incorrectly flagging each other’s activity as suspicious, causing NordVPN to disconnect or fail to connect.

Firewall Interference:
Norton’s firewall may interpret the VPN’s encrypted traffic as a threat and block it.

Port Blocking:
The security software might be blocking the specific network ports that the VPN uses for its operations.

How to Resolve the Issue
Add NordVPN to Norton’s Allowed Apps:
In Norton’s settings, find the “Exceptions” or “Allowed Apps” section and add the NordVPN application to the list.

Adjust Firewall Settings:

  • Temporarily disable the Norton firewall to see if the VPN connects. If it does, the firewall is the cause.
  • Manually add the VPN’s ports (often 443 and 500) to the allowed list in Norton’s firewall settings.

Check Norton’s Firewall History:
Review the firewall activity in Norton to see if it is explicitly blocking NordVPN connections and take action based on those logs.

AI responses may include mistakes.

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AI Overview
Yes, you may experience conflicts when using both NordVPN and a Norton device security product together, particularly if both include built-in VPN features or overlapping privacy tools. Common solutions include disabling one of the VPNs, configuring the Norton firewall to allow NordVPN through, adding NordVPN to Norton’s advanced threat or exception list, or using NordVPN’s split tunneling feature.

Why Conflicts Occur
Redundant VPNs:
Using both NordVPN (a standalone VPN service) and a Norton product with a built-in VPN feature (like Norton Secure VPN) creates two VPNs attempting to operate simultaneously, which will cause a conflict.

Overlapping Privacy Tools:
If you are using Norton AntiTrack with NordVPN, both offer privacy features that can interfere with each other, leading to software conflicts.

Firewall Interference:
Norton’s Smart Firewall can sometimes block NordVPN’s connection by not recognizing its ports or traffic as legitimate.

Solutions to Resolve Conflicts
Disable the Redundant VPN:
The simplest solution is to disable the built-in VPN feature within your Norton security suite and solely use NordVPN, or vice versa.

Adjust Firewall Settings:

  • Temporarily disable your Norton firewall to see if the VPN connects, according to Norton Community.
  • If the firewall was the issue, re-enable it and configure it to allow NordVPN’s ports (often 443 and 500) to pass through.

Add to Exclusions/Exceptions:
If you want to use both, you may be able to add NordVPN’s executable (.exe) file to your Norton antivirus’s “Advanced Threat Exceptions” or exclusion list to prevent interference.

Use Split Tunneling:
If your NordVPN or Norton product has split tunneling, you can configure it to exclude certain apps or websites from using the VPN connection, allowing both services to function simultaneously.

AI responses may include mistakes.

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AI Overview
A third-party VPN often conflicts with Norton security because Norton’s firewall or antivirus software can misinterpret the VPN’s traffic as suspicious, leading to connection issues. To resolve this, add your VPN to Norton’s “exceptions” or “allowed apps” list to prevent it from being blocked. For a temporary test, you can temporarily disable Norton and see if the VPN works, confirming that Norton is the source of the problem.

Steps to resolve the conflict
Temporarily disable Norton: This is a diagnostic step to confirm the conflict is with Norton.
Access Norton’s exceptions/allowed apps: Find the settings or preferences within your Norton application.
Add your VPN: Locate the option to add exceptions or an “allowed apps” list and add your third-party VPN to it.
Restart your devices: After making the changes, restart both your computer and your VPN router if applicable to ensure the settings take effect.

AI responses may include mistakes.

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AI Overview
A conflict between NordVPN and Norton Firewall is common because Norton’s security software may block VPN traffic as suspicious, leading to connection issues. To resolve this, you should add NordVPN to Norton’s “Allowed Apps” or “Exceptions” list, or disable the firewall temporarily to confirm it’s the cause of the problem. You may also need to flush your network stack, ensure your system is updated, or reinstall the NordVPN application to restore proper function.

Add NordVPN to Norton’s Allowed Apps:
Add the NordVPN application and its related executable files (e.g., NordVPN.exe, nordvpn-service.exe, openvpn-nordvpn.exe) to this list.

Temporarily Disable Norton Firewall:
Select the option to temporarily disable the Smart Firewall to see if the connection issues stop.

Reset the Norton Firewall:
Restart your computer.

Flush Network Stack:
Open an administrator command prompt.
Enter the following commands one by one, pressing Enter after each:

  • ipconfig /release
  • ipconfig /flushdns
  • ipconfig /renew
  • netsh winsock reset
  • netsh interface ipv4 reset
  • netsh interface ipv6 reset
  • netsh winsock reset catalog
  • netsh int ipv4 reset reset.log

AI responses may include mistakes.

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Caveat: I do not run Nord VPN