"Tune Failed" / "SID not found in PAT" error messages

I have a Satellite dish System with VU+ Solo 2 receiver (OpenVIX image + CCCam Softcam) with 1.1 mtr Triax motorised dish. For some of the channels I get the error messages like "Tune Failed " or "SID not found in PAT". Also each time I scan some channels appear and some other disappears. So with each service search channels come and go.

What could be the problem? Is it an issue with the 1. VU+ Solo 2 Receiver? or 2. OpenVIX image or 3. Cardsharing Server or 4. Motor or 5. LNB?

Any help highly appreciated.

Quote from master G

You will get those errors when a transponder has changed or a channel is not currently transmitting.

Which channels are you getting those errors on ?

Have you tried loading a channel list like catseye ?

When you do a scan are you going into the last scanned bouquet and reloading services ?

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The channels for which I get thee errors varies from time to time. Some time channels like Sky News, RTE 1, etc etc.

I havent tried loading channels list.

I am actually doing a manual scan - Select a Satellite (28.2E) and run scanning

I tried every thing - searching by Transponder / clear before scan etc. But each time the list of channels getting found by the search are different each day. Channels appear and disappear at random. Ans for some channels I get the tune failed error message. The same channels would work a few days later after a new search.

Is my problem and issue with the LNB as pointer out in some other forum - skew off the LNB?

Please help...

I would try changing the LNB, to see if this is the problem.