Original post by: Rusty Mitchell ,
I had this issue. My problem was that the new antenna wasn't seated as well as it should be. After reopening the iPad and making sure that the antenna was definitely connected to the board properly, Wifi is working properly. I was pretty sure I had connected the antenna properly the first time, but I had not. With it barely connected, it worked, but the range was terrible and it would only pick up one wireless signal. I hope this helps.