enter the code (null)
I can't get text message forwarding to work on my iPad again. I had to reset my iPhone due to it constantly rebooting, so I lost my settings for text message forwarding. I'm trying to set it up again, and I keep getting:
To send and receive your iPhone text messages from "1-xxx-xxx-xxxx" on this iPad, enter the code "(null)" on your iPhone now.
I never get a code, just null over and over.
I've reset iMessage on both iPhone and iPad. Timezones are the same. Send and receive is pointed to my Apple ID and my phone number. I've powered off and on both devices. I still get this problem. How can I resolve it?
iPhone 6 Plus, iOS 8.1.2