[JRTJH]

The KeyTV system is designed to process TV, Cable, Satellite and FM signals. It is not equipped to recognize any other frequency range and will never "see" or "process" the carrier frequencies used for WiFi or internet signals that are present on the signals routed over the Co-ax connected to the KeyTV box.

In other words, your Xfinity signal is "invisible to KeyTV" and since KeyTV can't see it, it can't/won't process it. Granted, it's present on the cable, but it's not electronically processed.... The KeyTV box "shorts it to ground" and doesn't send it through....

Think of it as having the cable attached to your TV. ALL 600 + channels are "present in the cable signal" but YOUR TV only processes the single channel you're "tuned to view". All the others are "shunted to ground" and disposed of by the TV tuner... Your KeyTV box does the same with all signals on the cable input that it's not "electronically tuned to accept"... The ONLY signals KeyTV is "electronically tuned to accept" are OTA TV, Cable TV, FM radio and Satellite TV/audio. ALL other signals are shunted to ground. It won't "pass through" what it can't/won't see....

So, Xfinity is "shunted to ground" and can't be processed by the KeyTV tuner.....