so i have 2g iphone with a wifi problem that keeps on happening. everytime i get the wifi bar and starts to work the wifi bar dissapears. my wifi bar stays on for atleast a min if that. also my iphone is acting up i can't recieve calls sometimes also the time on the iphone is wrong so i have to restart the iphone to get it back to the correct time. so i don't understand why this is happeing to my iphone it used to work like a well oiled machine. now its just slowly messing up!