I have contacted AT&T about this issue but they have no resolution..
I had to reset a watch after too many password attempts. This watch is set up for a family member so it is paired to my iPhone but has it's own phone number. The pairing works after the reset with the exception of the cellular setup. When it connects to the carrier it shows that there are no lines available. Thanks in advance to anyone that can help.
Apple Watch SE
Hello jillss100,
Thanks for reaching out using Apple Support Communities!
We understand you're seeing an error for no lines available when trying to set up cellular on your Apple Watch.
We see you viewed the steps to Set up Apple Watch for a family member - Apple Support
What are you seeing in the Apple Watch app > My Watch > Cellular > Set Up Cellular?
Please try these steps to Set up cellular on Apple Watch - Apple Support
We hope this helps to get your Apple Watch connected to your cellular plan.
Cheers!
Can't connect Apple Watch to cellular after reset
