I have been using the MA701 for almost a year without major problems until a month ago. I can connect but then after a few minutes there will be no connection even when the signal strength is quite high. E.g., clinking an URI in opera will not connect but yield a TCP error. I can sometimes disconnect and reconnect to get another couple minutes of connection, but sometimes no connection at all. It is not the AP because other users connect fine. The puzzling fact is that I can fire up Wellenreiter with an Ad hoc connection and capture all the APs available for as long as I want. That would seem to say it is not a hardware problem.
I have reverted the machine back to Factory Default and still got the same problem. Any pointers or suggestions for troubleshooting will be much appreciated.