I got the update my two HR/22s and one HR21 on 10/10 and on 10/11 I got the error message "no signal on tuner 2" on one HR 22 and the HR21. The other HR22 was fine. I called customer service several times. My first bug problem was that they couldn't schedule a service call until 10/24 between 4:00 and 8:00 PM which to me is not what I call good service. I was told that I could log on to my account and look at scheduled service calls and check to see if they have had any cancellations and if so I might be able to get an erlier service call.
I kept checking for scheduled service calls for the next several days but it never did show that I had any scheduled. I called customer service several more time to tell them their web site didn't work as promised and to see if I could get a quicker service call with no good news.Finally one of the ladies I talked to suggested that I should do a setup for a single tuner DVR. I did and it at least made them so they would work on one tuner.
I kept checking every day or so to see if my scheduled service call showed up on the web site, it didn't. On 10/24 at about 5:00 PM they called and told me they had to reschedule for 10/26 between 8:00 AM and noon. At about 11:45 AM they guy showed up.
He ran setup and put both DVRs back to 2 tuners and the damned things worked, never could figure out what the problem could have been!!