I am having problems with receiving all transponder links. I installed a 3LNB oval dish, but, for example #231 Food Channel or #545 FLIX channel will not show. Troubleshooting I found that transponder 1, 3, 4, 12, 20 have zero signal and 2 takes a long time to signal lock, sometimes too long. My signal strength on all other transponders is 90-100. What am I doing wrong? I have w local antenna connected to the same canle through a setallite signal splitter. I do not watch local TV and DirectTV at the same time.