Checking your netid info
configuration key="hd_00010_dvbc_uk" netid="00010" bouquettype="hd" frequency="643000" symbol_rate="6952000"
Your working cable box should show symbol rate is it 6952000 or something else as your netid could be wrong?
I have been updated to pass on this important info as not too sure where you are.
Tuner configuration:
Set every tuner with Cable signal wire attached to DVB-C mode.
Any tuners without signal wires should be disabled/not configured. (Some receivers do not have internal splitters)
Network ID = 00000. Leave it as 00000. it does not matter what you use in tuner configuration in the UK or Ireland
Service scan type = Provider ( this is default for most images)
Country = UK
Region = Set the correct Virgin system. If you dont know or unsure it, set it as "Virgin UK All systems"
Scanning:
Using ABM is not the same as scanning.
Perform a manual scan. ensure complete is selected, not predefined transponder.
Using ABM:
If you want to "scan" using ABM, ensure your network ID is entered where it says Region in the Provider menu. Leave the one in tuner configuration as 00000