BTES Technical Support
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What can I do when my box says "Advanced Services Unavailable"?
If your cable box states "Advanced Services Unavailable" and you are not receiving your digital channels (anything above channel 100), this normally means that the box is not receiving a strong enough signal to display digital channels or the program guide. You should still be able to see channels 2 through 80. Check channels 5 and 11 for quality problems such as static or ghosting of images. If there is static on these channels the problem is most likely caused by a bad splitter or inside wiring. In order to avoid possible inside wiring charges attempt to replace the cable splitter inside the house.
If there are no quality problems with lower channels or with channels 5 and 11, try to power cycle the box by disconnecting power to the box for 30 seconds. Reconnect power to the box and wait for the time to appear on the front of the box before powering the box back on.