how can I turn off my firewall...
People can connect but after a fiew minuets they ping out....
So it has to be the firewall... :(
PLEASE tell me how to turn it off or make it let me run a server.

im sure if the firewall was active they wouldnt be able to connect at all!

maybe your server connection is unstable or maybe has something to do with your sv_maxrate ?

what is that set at?

Are you sure this isn't a firewall?
what does net_noudp 1 supposed to do then?
my sv_maxrate 25000
I don't really think this matters though
Does it?

it is 25000
And the comp is capable of doing it
2.8 GHz
all up to date stuff
dsl LAN
and router....
could the router be the problem?

25,000? That is way to high for a maxrate for most machines, and the maxrate is more dependent upon net connection, not really the CPU processor speed, etc. Try setting it down to like 5,000, or 4,000 if you suspect any of the users are dial-up (since dial-up can only handle up to 4,000 max rate) and if using DSL, your upload is probably only 128, or 256 at max so you could probably only handle 6-8 people at 5,000 maxrate, and about 1-2 people at 25,000 if that.