So finally iīve decided to switch from Battle to Opentdm server... All seems to function well for me except one thing: I canīt set port

If i start the server by the command +set port 27920 whithout port given in server.cfg the server will default to port 27910. If i start the server whith port given in server.cfg and no port specified in the start command same thing happens. In
both cases the consolemessage "port is write protected" as well as "ip is write protected" appears.
Environment is win32 and latest r1q2 dedicated.exe. Any help is most welcome!