Anyone having problems with WIFI connection, like searching for 5-60 minutes...? Seems like occasionally, when I turn on wifi on my Galaxy like at public libraries, colleges, coffee shops..., it will search for eternity and not find a signal that is there. So I turn wifi on and off for 5-10 times and finally it connects after 5-10-20-30-40 minutes of waiting and trying, or sometimes not at all. Other wifi places, it connects immediately. Anyone else having the same problem?