Since about a month ago WiFi has been working fine, no problems at all. Then randomly the wireless will stop working, all devices show that they are connected but when trying to access the internet nothing happens, wired devices are fine, and after restarting the router it works fine for a few hours until the same thing happens. I assumed this was the fault of the router, so after contacting my ISP (BT), they sent me a replacement router. Exact same issue. I am very confused by this is as wired works fine with no interruptions but WiFi stops working but still shows it's connected. I cannot find anything about this anywhere and I would appreciate any help or advice you guys can give me. Thanks!