I had the same issue with power, but a battery backup on each satellite fixed it.
Also, cant go wrong with the rbk50, Ive used it for a few yrs now and its range and reliability is excellent, my internet is 80/15 and I got that everywhere in my house and yard (10000 sqr. ft), it even went out over a a pond out back where I take a boat out sometimes, I can watch movies and listen to music from my upnp and ftp server on a boat in a pond that is 100 yards from the router.