My LG G4 on a Tmobile network running Android version 5.1 use to work perfectly fine on my home WiFi. Now, the phone connects to the router but then prompts me with the message "Internet not available". I have other devices (Iphone, Ipad, Amazon fire stick, Galaxy note tablet) that work fine. I've done a factory reset on my phone which solved the issue for a day or two but then the issue started again. I've also did a hard reset on the router. If there is more information needed please let me know and I'll post it. Thanks!