I have two wireless routers at home, a Zyxel and a Billion 7800N, with my HD2, it could connect to either router with no problems, my SGS2 will not connect to the Billion, my wife's iphone connects fine to either as well. I have tried every setting you can imagine on the Billion router to get the SGS2 to connect but no luck. My SGS2 connects fine to the Zyxel but when that is out of range, it should connect to the Billion, it WILL NOT, even if I am right next to the router! It says connecting . . . and then stops connecting. I have tried fixed IP on the phone as well - no luck!
Has anyone out there got a Billion 7800N that is working with their SGS2? Anyone got any suggestions?