I've done a (hopefully!) thorough search and I haven't been able to find an answer to this problem. I have a Samsung Galaxy Ace running Gingerbread. I don't have any problems connecting to secured wifi, (my home network, work, friends' homes, etc), but I have difficulty with open, public networks like McDonald's. My phone finds the wireless signal, which is generally very strong, and connects, but is unable to get me to the login page, so I can't access the internet and apps like Gmail and Facebook don't work. Some open networks work and some don't and I have no idea why and I can't see a pattern. This afternoon, my phone couldn't use the internet at McDonald's while my father's iphone 4 connected to the free wifi perfectly. I'll be travelling internationally soon and the free wifi would make a huge difference! Thank you!