do you guys ever notice you have wifi connection problem especially when you try to re-connect back to the same network. this happen to me with my galaxy 5 at my office. after a few test i realised 2 things, 1 is my office wifi router filter connection by MAC address. 2, there is a bug in the Galaxy 5 that change the MAC address everytime you reboot your phone. Piecing these 2 issue together, i identified the wifi connection issue for my phone. I am posting this to get feedback from you guys to see whether you all face this or not?