Get an Uninterruptible Power Supply (Score 1)

I had the same issue of restarting network hardware. I ended up wasting a lot of time swapping out gear until I realized what all the swapped hardware had in common: the power supply. Perhaps my house was susceptible to mini-brownouts which were resetting the hardware. I got a UPS and connected it to my modem, router, and access point. Never had a problem since. -ST