Problem with connecting to half of the players in coh

[Virmeck]

Hi,I am currently haveing a problem with connecting to half of the players in Coh. when i try to join some games some of them have red x's instead of there performance bar. those are the games i cant join.I tried goin into my router and changeing the ports but dosnt help. Here's some of my info that may help you out to try and figure out the problem.
Dsl Modem/router EQ660
Linksys LNE100TX(V5)
broadcam NetXtreme 57xx Gigabit controller


If there is any ports i must open please list them


Thanks,
Virmeck