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Watch Model: SM-R815U
Serial Number: <hidden>
Software Version: R815USQU1ARH1
Phone Model: Galaxy S8: SM-G95OU
Baseband Version: G950USQS1AQF7
Android Version: 7.0.0
Have you tried resetting the device?
What type of device are you using with your watch?
Samsung galaxy 8
software is current
As numbersync is a carrier feature, you would need to continue to work with AT&T for further assistance.
I had this issue. I called AT&T they said stick a pin to reset. I did what the agent said. Turns out agent was wrong and ruined speaker. I returned the watch to AT&T
3 weeks ago
This has been happening to me too then I found a post in a discussion
I did this and it finally worked! I hope this helps