iPad SMS messages "Not delivered"
I recently upgraded my iPad Pro 12.9 to IOS 15.1. Yesterday morning I started receiving "Not delivered" for every SMS message I tried to send. I successfully sent an SMS message around 4:30 AM. When I tried to send another message around 6:00 AM, I started receiving "Not delivered" for every text message sent. I selected Retry and got same message.
- My iPhone 7 Plus, IOS 14.8
- I turned off and on my iPad
- I did a soft reset of my iPad
- I did a restore of my iPad using iTunes
- I am able to send iMessage
iPad Pro 12.9-inch, 3rd Gen, Wi-Fi