I'm Trying to register to GCM to use push notification. For most of the devices it works, and I can get the push notification with not problem, but on 2 devices, I get
"IOException (@GoogleCloudMessaging:register:-1) {AUTHENTICATION_FAILED}"
I don't understand why this happens, can someone advise? Thanks
EDIT: I've tested the account user-id and password and they are correct (and the gmail is synced) and the google play services is up to date