On the surface, I would say you need to have your dish re-aligned. The fact you are getting signals through (confirmed by the fact that you have posted signal levels) leads me to believe your MS is okay.
A quick test to rule out the MS and confirm your dish needs re-alignment (or you might be having issues with your receiver) is to connect the leads coming from 101 directly to one of your receivers. If nothing changes then you can rule out the MS.
What really concerns me is the fact that you can not watch any of your existing recordings. I have had issues with my dish being knocked out due to high winds, etc. but still have always had access to recorded materials.
A quick test to rule out the MS and confirm your dish needs re-alignment (or you might be having issues with your receiver) is to connect the leads coming from 101 directly to one of your receivers. If nothing changes then you can rule out the MS.
What really concerns me is the fact that you can not watch any of your existing recordings. I have had issues with my dish being knocked out due to high winds, etc. but still have always had access to recorded materials.