ziad tamer

i have tp-link8816 router 

and access point tl-wa701nd

it works sometimes but it also crashes and gives me (unable to join game session)while i play black ops2 but when i change ports and  return them again to 3071 3072 it works again

sorry for bad english

i think the main problem is in link ports and i also has the same (unable to join the game session problem) so i tried to change the ports but in the verification they fail but i tried to join a game it gives me the same message then i returned the ports again to 3071-3072 after that i could join game easily but its just a temporary solution cause the message returned again so i made the same steps again and it works 

sorry for my bad english

and anyone has a solution plz write it down

hi plz help when i download and install any title update for any game it wont start and gives me this message (try redownloading it)

plz help