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File auth error
We have CallManager (Cisco Unified CM 18.104.22.168900-4) and Unity servers, one of each.
Recently, a couple, by no means all, of our 7940 phones stopped working, giving the message "File auth error".
I looked up this error and found a couple of solutions:
1-Delete the phone from the system, and add it again. I did this and get the same result.
2-Stop and Restart the TFTP server. I got the following instructions from CCM Help:
Resetting the Devices, Restarting Services, or Rebooting
1. In Cisco Unified Communications Manager Administration, choose System > Cisco Unified CM. The Find/List window displays. 2. Click Find. A list of configured Cisco Unified Communications Manager servers displays. 3. Choose the Cisco Unified Communications Manager on which you want to reset devices. 4. Click Reset. 5. Perform Step 2 and Step 4 for each server in the cluster.
The options I'm presented with when I follow these steps are: Save, Reset, or Apply Config.
Does Stopping and Restarting the TFTP server sound like a logical solution? If so, does Reset do just that?
If this this does not sound like the correct solution, do you have any other options?