Help me with my router WRT54GC ver.2.0

[mr.WujekDobraRada]

I have a prolbem when i am tring to play MP RWM. When i am joining to a room pings are ok but when sb joins then we dont have pings to ourselves. Then i must go out and enter room again to have ping to sb who join after me. I always must join as last player so I feel bad. I hadnt this problem before i bought router WRT54GC ver 2.0(befroe I had modem). I dont know what to do. Should I open some of ports or do sth with firewall. Please Sb HELPS ME.


Wuja