remote doesn't turn off/on TV

I just got the updated DVR and WiFi box a week ago.  The remote has been working fine until this afternoon.  After going thru all the numbers I was told to type in the setup, I got a message that the remote can’t be set up at this time.  

• A technician came on October 26 and exchanged my old DVR and WiFi boxes for the new X1.  The remote worked for a little over a week, it also doesn’t control sound.  This is an odd problem because some times it works and sometimes it doesn’t.  I have done the setup remote multiple times, refreshed the box once and restarted twice.  The 1st time I restarted the box, the remote worked after setting up, the 2nd time made no difference.  Yesterday afternoon it worked, this morning it doesn’t.  Could be box, could be remote?  Wondered if the crazy weather we’re having could be the problem.  I know I’ll have to call tech support, just putting it off

Yes I thought it might be, it’s just odd.  I will be requesting that this afternoon I think and see if that’ll work.  Thanks for your help

I've stepped through all the codes, i have the tv attached to a sony surround sound and the remote works for the sony device but will not shut off the panasonic. After I set up the remote, step one sync w/ set top, two, sync w/ tv, three sync w/ sony. Once sync w/ the sony, the remote thinks the tv is a sony. is there a fix

I cannot get my xr2  remote to turn off tv.... It will change channels, and adjust sound, but will not turn off the tv set... 

Best fix. It worked on two different types of remote. Just choose the tv brand and follow the instructions. Very easy. Thank you.

Not clear if this was solved. I also have the TCL/Roku 55" and a Denon receiver. The all power button used to work turning on both units and turning off both units. When I program them now it will turn on both units but will only turn off the Denon receiver. The TV stays on.

When I initailly start programming, before I program the remote for the receiver it will turn the TV on and off. After programming the receiver then it starts the weirdness.

This was happening with our old boxes and we have just upgraded to the new 4k boxes with XR15 remotes and it is the same issue. We have 2 other setups in the house with sound bars and those work fine. One setup even has the same TCL tv but a sound bar instead of a receiver. Any help would be appreciated.

I have same problem...new remote, new set up...Samsung frame tv plus bose sound bar.  I have re-paired numerous times.  Everything works fine except turning tv on and off.  It powers sound bar though.