Why is it you are continually loosing your connection to the FOX News channel, while all other channels, as well as FOX Business channels remain working? This happens repeatedly with Xfinity stating that it is a problem on their end - very irritating, . . . maybe time for a new provider?
Check your inside cables for for loose end-connectors. Redo connections to cable-boxes and the television. Loss of just a few channels is caused by receiving a weak signal.