Universal remote not pairing with Soundbar 500
Universal remote is double flashing power, source and tv input every 5 seconds. Set up system yesterday and was able to pair remote to Soundbar. Remote worked with Soundbar. Today remote is flashing power, source and tv input and Soundbar is not responding to remote commands such as mute or volume. Tried volume down and left navigation then center control button. Opened music app, settings, universal remote. Showed it was paired so I clicked remove. Exited app and back into settings, universal remote and clicked pair remote. Clicked volume up button and after several seconds got message Soundbar can’t find remote. Also tried replacing batteries with new ones and unplugging Soundbar power for 30 seconds. Remote is still flashing top 3 buttons and won’t pair with Soundbar. What’s the trick to pairing the remote and having the remote respond?