Please try again later.'Īt this point apparently it's safe mode check, then NVRAM reset time. I now get the same ' registering device does not have appropriate credentials' error instead of the original ' The server encountered an error processing registration. Interestingly after step 9 there, my iMessage error has changed. The registering device does not have appropriate credentials. The account would not enable there either: Could not sign in to iMessage. Enabled the guest account, and tried iMessage there.Opened keychain and removed all iMessage entries (ensuring I knew my Apple ID & password, which I'd just been using up there in step 5 anyway).
Set flash player preferences to block all sites from storing info on my computer.This is a simple home setup, with no proxies.
New window will be display and chooseI also tried removing my apple ID information from my phone, turning off iMessage on both of the devices, and placing my iPhone 5 in airplane mode for several minutes before turning it on and re-logging in. I have tried deleting the file and that didnt work.
IMESSAGE STOPPED WORKING ON MAC SERIAL NUMBER
IMESSAGE STOPPED WORKING ON MAC UPDATE
Since then iMessage seems to have dropped its sign in - probably following an update of some kind but as I don't use it every day I really couldn't be sure.
My last successful message from iMessage was 5th November.