just recently i've been hosting servers for playing games with my friends now that port forwarding on this router works properly. this works just fine for probably 10-15 minutes, but after a while my friend's ping begins to skyrocket for no apparent reason and games become unplayable. this has happened with a tf2 server, a cpma server, and a morrowind multiplayer server so far, and i can't find anything about this when searching on google. disconnecting and reconnecting doesn't solve the problem, and as far as i can tell the only fix is to restart the server.
has anyone else had this problem? how can i fix this?