Problem with Bad Company 2

I've got this problem I don't know how to deal with. Basically after I play a certain amount of time, the Internet disconnects. I'm using a Wireless dongle and I'm on a Linksys router.
This problem never happened before and it was working fine until 3 days ago. I haven't changed anything or installed anything that interferes with the connection, and tried to open ports, deactivating/reactivating the upnp. I've also tried playing other online games, but have been lagging very badly and the Ping was quite low.
Has anyone got any suggestion? Thanks.

I've got this problem I don't know how to deal with. Basically after I play a certain amount of time, the Internet disconnects. I'm using a Wireless dongle and I'm on a Linksys router.
This problem never happened before and it was working fine until 3 days ago. I haven't changed anything or installed anything that interferes with the connection, and tried to open ports, deactivating/reactivating the upnp. I've also tried playing other online games, but have been lagging very badly and the Ping was quite low.
Has anyone got any suggestion? Thanks.

yourmajesty90