Knaq. thanks!

The dish was placed by a satellite company. It is 100cm high (don't know the brand) and has 2 lnb's on it. one on 19.2 (8 connectors, 6 connected) and one on 23.5 (4 connectors, connected). I just flashed The Golden Media Triplex boxes yesterday with the HDMU_15234_E2_spark7162_217_git_4182_nodebug_mix_F lash.zip image. They are connected to the 23.5 via a Spain SAR 212 F Diseqc to a Chess Edition3 Universal Quad LNB. Need any more info?

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Previously I also tried to connect the box directly to the free port on the LNB but that also did not work. I don't think it has influence since other boxes work fine but the dish is located behind some kind of wall so it cannot be seen from outside.