I have a GT-AC2900 that is on latest stock firmware. I used to use it as my main router and had zero issues with it. Now I use it as a media bridge and it seems after a day or two I can no longer access it via SSH, the Web UI or the ASUS iOS app, but it is still providing internet to the plugged in devices, unplugging power to reset gets me another day or two of working then the same thing happens. Anything I can check to see why this is happening, or could it be a hardware issue?