Unable to contact iMessage server
Out of nowhere I can no longer access iMessage or Facetime servers to sign in. I get a signin challenge, enter the details and then wait till it times out. I can’t turn it off because I can never signin. I have rebooted, signed out of and back into iCloud but nothing changes.
This is out of the blue on an iPad that has been fine for a couple of years.
iPad Air (3rd generation)