This adapter i use doesn't give me good performance even so the router is only a floor upward.. and even so the router is also tplink its TD-W8961N ...the phone can get the full speed wirelessy from...

I configured WDS in the two routers and it works for just 10 mins , and then the main router (the one connected to ISP) disables internet and hangs (doesn't even allow any wireless devices to...