Make sure your leads and splitters are all connected well, check for loose F-connector/ faulty splitters (make sure cable feed is in RF-IN )
As you have already determined that your cable is live then I would start to look at the box as the cause of the problem. Make sure your box is running on the latest version firmware. Reset your box to factory settings then do a ‘FULL’ Powerscan (not normal Powerscan) on the 6.952 frequency. If still nothing reset to factory settings again and do another full
Powerscan on the 6.997 frequency, see if that brings something up.
How many splitters are there on the line? Too many could cause the signal to be weak; if the length of split cable and is the length of cable very long: you may need booster?
Easiest way to test the box is to connect the receiver to the cable feed as its ‘first’ enters the house. Without any splitters on the line (you will then see if there is a box problem / line problem – it could be a faulty splitter?)
*Download a Channel Data File File from another similar box / find on web forum. Transfer it from you other Eurovox / Starview TheBox etc