One of my machines is showing "SD Authentication Error".
The machines doesnīt send auto E-mail Notification and i canīt access via Browser.
This is what iīve tested without success:
Replaced SD Printer / Scanner - NO SUCESS
Memory All Clear - NO SUCESS
Replaced the NVRAM - NO SUCCESS
What worked :
Replaced the controller board.
Anyone have a less expensive solution than Replace the Controller Board?