I have been having similar issues with my new Inverto Black ultra LNB / triax dish that I replaced a vintage *** one with. Never had an issue on the old setup bar the fact that the signal was a bit weak ever since my son broke the lnb holder with a football so I took the plunge on all new kit to connect up to my gigablue quad.
Since I installed the new LNB, I am only able to scan all the channels by setting the Disecq as advised above but every time I restart , I am back to Tune failed. I sometimes get the channels back by changing bouquets but it's not repeatable. I am wondering if i should take the LNB down and replace it or is that going to be a waste of time. Glad to see I'm not the only one with problems though.
