I've bought S2 couple weeks ago, and everythings perfect.
only thing is that i can't connect to my home wifi!
i have fast cable net, without wifi, so i bought tplink tp-win721n.
i have download all the latesti drivers and utility tools, setup my own ap using there info from there site, and this what happens all the time:
when i turn on wifi on my s2, it sees my home wifi, full signal, it connects to it, but a cant do anything on the net, browsing, maps, weather...
when i try to turn off/on wifi, then suddenly a cant connect to my home wifi, until i completly uninstall it and do the setup 1 more time...
a dont have any problems to connect to any other wifi, just mine...
srry for bad english, not a native speaker
and just that you have all the info, iam using 2.3.4 version
cheers and thanks in advance!!!