Until about a week ago I had no problems connecting my transformer via wifi hotspot from my telstra samsung galaxy s2. Now it won't even pick up the hotspot. I have reset both the phone and tablet which hasn't fixed the problem and I've also confirmed that i can connect the transformer via wifi hotspot to my iphone, and my samsung can conect to an identical transformer no problem. So now I'm lost to why the two wont work together anymore. Has anyone got any ideas?

Lee