Hey there
I'd start at the very beginning ...
1) Make sure you disconnect the coax cable feeding the receiver, but, before doing this, be sure turn off your LNB power.
2) Load the cleaner file 3 times, in a row via serial cable.
3) Then 'Factory Default' the unit via the remote and the on-screen menu.
4) Reload a fresh copy of the latest file via serial cable
5) Reconnect the Coax feeding the receiver.
6) Turn on the LNB power again.
7) Set up your ANT info, then do an AutoScan.
8) Save
9) Reboot (hard reboot) via the rear power switch.
10) Turn TV on
11) Leave on one channel for at least 20 mins or so ... do not change channels during this period.
Creative Genius