How to change the Micollab app from using 31337 and use a different port instead.
Port 31337 is a hardcoded remote debugging port that was intended solely for debugging purposes with Chrome as the receiver. However, Chrome no longer supports this feature.
We can tell the Micollab client to use a different port with this extra parameter
–remotedebugport=XXXXX.
( where XXXXX is the chosen port number)
You can try it from the command prompt first if you like
Change to install directory

Run the command

Check if 31337 or 31338 is in use with netstat command
To add the parameter every time you click on the shortcut edit it to look like this

Just right click on the shortcut and add the parameter after the “. As in the pic above.