Duvidas ao entrar no server.

BinkOpen( c:\program files (x86)\left 4 dead 2\left4dead2\media\l4d2_background03.bik )
] 192.168.29.155:27015
Unknown command "192.168.29.155"
] connect 192.168.29.155:27015
Connecting to public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Retrying public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Retrying public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Retrying public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Retrying public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Retrying public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Retrying public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Retrying public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Retrying public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Retrying public(192.168.29.155:27015)
Sending UDP connect to public IP 192.168.29.155:27015
Connection failed after 10 retries.

Como vcs podem ver quando tento entrar no ip com cod. connect ip:27015.
Esse problema nao acontecia antigamente, começou a acontecer desde q coloquei a versao 2.1.1.9 (nao querendo culpar versão, so to colocando um ponto do inicio do erro).
Crio meus serves e meus amigos tbm nao conseguem, além deu tentar tbm da msm erro pra mim quando entro em servers q eles criam.. grato, espero poderem tirar minha duvida..