iPhone 6 Wi-fi issue occurs on T-Mobile phones also
Happens to me on T-Mobile, so I don't think it's a carrier issue. I've noticed since I got the iPhone 6 last month that wi-fi and LTE just stop working at random times. For example, I had no problem all day and evening yesterday and wi-fi was working for me all day today until around 1:10 pm, when networking went deaf. It still shows the wi-fi signal strength icon, just won't talk over either wi-fi or LTE. A reboot is the only thing that brings it back. This occurs at least several times a week. Sometimes it will occur more than once daily, then go for several days without the issue. I'm suspecting a bad or flaky chip on the phone's motherboard (or whatever they call it in a phone).
I can visually tell when it stops working because the indicator on the status bar changes from "T-Mobile Wi-Fi" plus the signal strength icon (indicating that I can make calls via wi-fi) to showing only the signal strength icon, in which case the wi-fi and LTE data connections are dead.
Happens to me on T-Mobile, so I don't think it's a carrier issue. I've noticed since I got the iPhone 6 last month that wi-fi and LTE just stop working at random times. For example, I had no problem all day and evening yesterday and wi-fi was working for me all day today until around 1:10 pm, when networking went deaf. It still shows the wi-fi signal strength icon, just won't talk over either wi-fi or LTE. A reboot is the only thing that brings it back. This occurs at least several times a week. Sometimes it will occur more than once daily, then go for several days without the issue. I'm suspecting a bad or flaky chip on the phone's motherboard (or whatever they call it in a phone).
I can visually tell when it stops working because the indicator on the status bar changes from "T-Mobile Wi-Fi" plus the signal strength icon (indicating that I can make calls via wi-fi) to showing only the signal strength icon, in which case the wi-fi and LTE data connections are dead.