U-verse service doesn't work, on 2nd new DVR now

You appear to have a network problem.  It is likely between your DVR and the Gateway. 

Does the SYNC light on the front of the DVR ever come on?

How is your DVR (supposed) to be connected to the Gateway (coax or Ethernet)?  

If coax, tighten all the connections you can see.

If Ethernet, make sure each cable is fully plugged in at each end.

Thanks for responding!

There is no "sync" light on the DVR, but there is a "link" light, that is green.

The DVR is connected to the gateway with an ethernet cable.  There are two other devices connected to the gateway - an AppleTV device and a wifi router/base station.  Both work fine.  I've swapped out the cables between the three devices, and it doesn't remedy the situation.

Is there some setting on the gateway that could be a problem?

Thanks!

No, but if you haven't already, restart the Gateway, then the DVR (again).  Do you have any other TV receivers and do they work?

OK - tried restarting the gateway and DVR.  No luck.  Same as before.   I have three receivers from AT&T, one cisco and two arris, and they all exhibit the same behavior.

Are these three receivers the 3 DVRs (the first one that failed and the two replacements) or did you have 2 other receivers at the outset and they all failed at approximately the same time?

The former - the original I had for many years and started failing, and the two replacements I've received in the last two weeks.

Thanks!

At this point only one should work, because two should no longer be on your account and the third one should be.  If the Link light is green, then that says it's talking to the Gateway, but the message you're seeing says that you're not.  If Gateway actually connected to the U-verse Network, then couldn't verify that it was on your account, you'd be getting a different message.

I think they're going to need to roll a truck to your location to figure this out.  Hopefully you'll get a tech who wants to troubleshoot and will work the problem rather than shrug and walk away.  Call 800-288-2020 and don't let them send another DVR since that's been done twice.  Make them send a tech.

ATThelp, if you see this, you could open up the DM to schedule the appointment.

OK - will try that - thanks for the responses!