i've just bought a updated C91 and everything appears to be ok. however my wifi keeps dropping out. i stand next to the wireless router and it connects, obtains the IP address and then instantly drops connection, it is just constantly just looping trying to connect, obtaining IP then drops. My HTC Sensation gets great connection. I also tried to make my phone a wifi hotspot and put it next to the tablet but same problem it is constantly dropping the connection. I have tried a mod as well placing aluminium tape under the antenna and get 4 bars at point of connection but again instantly drops connection. Its very very frustrating as I was having doubts about the tablet and this has left me annoyed and probably out of pocket. Any ideas or suggestions please.