Four client boxes do not pause live TV and the DVR play-back does not function, has anyone had these issues corrected?

We have had at least 13 tech visits and countless technical service telephone calls related to errors 2.1.2.9 and 2.1.2.2, and "we are experiencing technical difficulties, try again later", over the past six weeks, and problems still exist. We cannot watch any recorded programs nor pause live TV even though all the client boxes are correctly set-up for this function. The problems started when we added two more client boxes to the system. We had to reset the system on a weekly basis prior to this the addition, but the client boxes still worked without error messages, they would just freeze until rebooted.

We even had the primary/main box replaced and lost all of our recorded programming to no avail, the problem still exists and we lost months of programming. The techs think they have resolved the problem and go on their merry way, and within hours the problem returns. This saga has been going on way too long, we have missed days and days of work, spent hours and hours on the phone, and reset boxes dozens of times. We are frustrated that they cannot resolve this issue once and for all - it's a nightmare and all but the primary box are useless.

Has anyone else experienced these type of problems? Was it ever resolved to your satisfaction? Or, do you have a good contact for the dish network? Any thoughts or help related to your experience would be greatly appreciated.