I have this problem. when a fourth device connects to my wifi dsl router the wireless connectivity stops working for one of the already connected device. The wifi signal is displayed while searching wifi router but it doesn't connect. inshort. the wirless connectivity gets messup when a fourth device connects.i couldn't even login to router on wireless. and then no more device connects. the message on phone states" avoided poor internet connection" i have changed three DSL routers but all have the same problem. it must be a ptcl line problem.
anyone else faced this?