Server crashes insantly after start with error

[Anders]

Hi.

When I try to start srcds.exe up it instantly crashes with the error: "couldn't allocate dedicated UDP port".

I've forwarded all the ports required in my router and stuff, but it still crashes.

I'd like to know why , can anyone help me?
Anders

[Hollanda]

Looks like (1) the port is occupied (2) you are using a now configured ip