What is ‘The specified port is already open VPN error’ in Windows 10/11?
If you are facing The specified port is already open VPN error in Windows 10/11 computer when you try to connect to VPN, and looking for ways to fix, then you are in right-place for the solution. Here, you are provided with easy steps/methods to resolve the issue. Let’s starts the discussion.
‘The specified port is already open VPN’ error:
It is common Windows Problem considered as VPN Connection issue. This error ‘The specified port is already open’ is usually appeared while using a VPN Client in Windows 10/11 computer. This error prevents you from connecting your computer to VPN service for some reasons. When you use VPN on your Windows computer to connect the internet secretly, it uses a TCP port 1723 by the default to connect to the network
Sometimes, you connect to the network and put the computer idle, while you are away, then the computer goes into sleep mode stopping all functions, and after that, when you use computer and try connect to VPN, you may experience ‘The specified port is already open VPN’ error on screen. This type of error is occurred due to some temporary issue in Windows computer. You can fix the temporary issue just by restarting your Windows computer and then check if the issue is resolved.
This issue can be occurred due to interference of some other applications that attempts to use the same port as non-sharable connection used by VPN, issue with VPN software itself and its relating settings in computer, malware or viruses infections in computer, and other system issues. It is possible to fix the issue with our instructions. Let’s go for the solution.
How to fix The specified port is already open VPN error in Windows 10/11?
Method 1: Fix The specified port is already open VPN error with ‘PC Repair Tool’
‘PC Repair Tool’ is easy & quick way to find and fix BSOD errors, DLL errors, EXE errors, problems with programs/applications, malware or viruses infections in computer, system files or registry issues, and other system issues with just few clicks.
⇓ Get PC Repair Tool
Method 2: Restart your computer
This problem can be occurred due to some temporary issue in your Windows computer. You can fix the temporary issue just by restarting your computer in order to fix this error, and after restart, check if the issue is resolved.
Method 3: Fix The specified port is already open VPN error using Registry Editor
Step 1: Open ‘Registry Editor’ app in Windows PC via Windows Search Box and go to following path
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
Step 2: In right-pane, right-click on empty space and select ‘New > Multiple String Value’ and name it to ‘ReservedPorts’ and then open it
Step 3: Enter ‘1723-1723’ in Value Data box, and hit ‘Ok’ button to save the changes. Once done, restart your computer and check if the issue is resolved.
Method 4: Modify connection port in Command Prompt
Step 1: Type ‘cmd’ in Windows Search Box and open ‘Command Prompt’ from results appear
Step 2: Type ‘netstat – aon’ command and hit ‘Enter’ key to execute. Identify process PID for any program using Port 1723
Step 3: Type the following commands and hit ‘Enter’ key to execute. Change the number at end so it matches your process.
taskkill /F /PID 1242
Step 4: Once executed, restart your computer and check if the issue is resolved.
Method 5: Fix The specified port is already open VPN error using Control Panel
Step 1: Open ‘Control Panel’ app in Windows PC and click ‘View By’ dropdown, and select ‘Small Icons’, and then find and click ‘Phone and Modem’
Step 2: Open ‘Modems’ tab and choose the modem and click ‘Remove’, and then restart your computer and check if the issue is resolved.
Method 6: Update WAN Miniport drivers
Updating WAN Miniport drivers to latest & compatible version can resolve the issue.
Step 1: Open ‘Device Manager’ app in Windows PC via Windows Search Box and expand ‘Network Adapters’ category
Step 2: Right-click on your WAN Miniport driver, and select ‘Update Driver’, and follow on-screen instructions to finish update. Once updated, restart your computer and check if the issue is resolved.
Download or reinstall WAN Miniport driver update in Windows PC [Automatically]
You can also try to update all Windows drivers including WAN Miniport driver using Automatic Driver Update Tool. You can get this tool through button/link below.
⇓ Get Automatic Driver Update Tool
Conclusion
I hope this post helped you on How to fix The specified port is already open VPN error in Windows 10/11 with easy steps/methods. You can read & follow our instructions to do so. That’s all. For any suggestions or queries, please write on comment box below.
