We have multiple computers in our household connected to a Linksys wireless router which is in turn connected to a Zoom ADSL modem. When someone is playing an online multiplayer game (anything from Battlefield to SWTOR), and someone else uses another computer to access a web page, more often than not, the multiplayer game loses connection entirely. It's not even a temporary loss of connection that quickly fixes itself, rather, it almost always requires the player to exit and re-enter the game. It's accompanied with a "connection lost" error in the game.
This issue only seems to happen to newer games and it's a frequent problem in our house. I think that it might be a router issue, kind of "locking out" all other connections until that one webpage is done loading. Any specific router/modem settings I should check out?