On v6.4 fw Server Log what does this mean "Illegal Request On Port 22000 from IP: xxx.xxx.xxx.xxx"?

The error message on the farmerswife (fw) Server Log:

"Illegal Request On Port 22000 from IP: xxx.xxx.xxx.xxx (bytes_to_read=POST, session_id=/, auth_user= header=POST / HTTP/1.1"

This will happen, if on the iOS farmerswife app > Settings > Port field wrongly the main "Server Port" value e.g. "22000" is being used.

Solution: 

Use the above mentioned error message info "from IP: xxx.xxx.xxx.xxx" to figure out which user is trying to connect from the iOS farmerswife app by wrongly using the main "Server Port" value e.g. "22000". On the iOS device go to Settings > farmerswife > Port: change here from e.g. wrong 22000 to correct "API Port" value, e.g. 25000.