I have had my GS4 a little over a year now and so far have really enjoyed the phone. However within the last day or two I have been experiencing WiFi problems which I have never had before. When standing right next to my TP-Link WDR3600 I have good signal, but when I walk 20 feet away, the signal drops to 0-1 bars. All other electronic devices in my house have 3-5 bars of WiFi regardless of where I stand in my house. My phone used to have great WiFi coverage, and now it sucks.When these issues arose I thought maybe I should update my phone from 4.3 to 4.4, however that did not fix anything. So far I have tried factory resetting my phone twice as well as clearing the cache. Nothing has worked. I know this is not a problem with my router as I am experiencing the problems on my WiFi at work and at a friends house.Any insight would be great?
I didn't find the right solution from the Internet.