Wnr834b unable to open ports to online games mainly return to castle wolfenstein enemy territory have tried suggested solution still have lagging help please

If you tried my solution, then you would have opened all ports, so ports would not be your cause of lag at the moment. The thing is, you do not need to open any ports at all to connect to a game server, you only need to open ports when you BECOME a game server. The lagging will be down to your Internet connection, try to find a gameserver with a ping below 100. Alternatively, look for programs that consume your Internet connection like programs that are used to download MP3s and Applications as these will cause your game to lag heavily. Anyone else on the network may also be downloading or uploading, which will have an effect on your game, too. However it is most definitly not a problem with your ports.