Enter the settings of your antivirus and/or firewall and check the status of ports 8890-8892, if they are closed or blocked open and unlock these ports.
If necessary, contact the support team of your antivirus / firewall manufacturer to help you with the configuration.
Make sure ports 8890-8892 are not occupied by any other program.
The easiest way to verify this is to open your browser and enter the following address:
You should receive the error message “This web page is not available”
If the browser shows any other type of content, the ports 8890-8892 are being used by some other program.
In this case, look for the program in question and change the ports in the settings or close the program completely if necessary.