No Wifi symbols, no Wifi on iPad

My 64gb iPad wifi +3G worked fine without any problems until last week. But now it can't find any wifi in the house and my iPhone can do that. I rebooted and re-installed everything several times but nothing worked.This sounds like a hardware issue. I did the hard reset and restored it, then I installed it as a new iPad but that didn't work either.How to fix this problemTap Settings > WiFi > and