I haven't tried your 7 steps yet, but here is the Phy Rate Mesh
NDS 0 1 2 3
0 238 245 248 241
1 246 231 247 232
2 246 252 235 234
3 253 249 245 243
and yes when we moved the kitchen receiver to the bedroom we saw the issue again, but the bedroom had not had that issue so it seemed receiver related. We have, however, seen the whole home problem since moving the receivers around.
Unfortunately those numbers do not point to a problem. You may reconnect your CCK if you like.
I'm sorry you have been experiencing these problems. Intermittent problems are not easy to diagnose. Many times all tests will pass and leave the tech grasping at straws.
Just to rule out a few things, does your SD DVR have a red device attached directly to its sat in?
Have you introduced any kind of electronics to the home around the time the problems started? It's extremely rare, but there have been cases of something as simple as a clock too close to the coax causing issues. Is there anything that turns on around the time the MRV stops working?