How to fix error error-connection-active in Windows 11

Solution Steps

1. 1 Press Ctrl+Shift+Esc to open Task Manager. Look for any instances of the application that is giving the error. If you see multiple instances, select them and click 'End Task'. This ensures no lingering processes are holding the connection.
2. 2 Press Windows key + R, type 'cmd', and press Ctrl+Shift+Enter to open Command Prompt as administrator. Type 'netstat -ano' and press Enter. This shows all active network connections and the process IDs (PIDs) that own them. Look for the PID of the problematic application and note it.
3. 3 In the same Command Prompt, type 'taskkill /PID [PID] /F' (replace [PID] with the actual number) and press Enter. This forcefully terminates the process that is holding the connection. Be careful to only kill the process related to the error.
4. 4 If the error persists, restart your computer. This clears all network connections and ensures a clean state. After reboot, try launching the application again.
5. 5 If the problem continues, check if your firewall or antivirus is blocking the application. Temporarily disable them (if safe) and test. If it works, add the application to the allowed list.