PPP/4/CHAPAUTHFAIL
Message
PPP/4/CHAPAUTHFAIL:On the interface [interface-name], PPP link was closed because CHAP authentication failed.
Possible Causes
Cause 1:
The authentication time timed out.
Cause 2:
The number of authentication failures exceeded the maximum.
Cause 3:
The random packet generated according to the peer user name was incorrect.
Cause 4:
The CHAP control block in the PPP control block was null.
Procedure
- Solution to cause 1:
Change the cable or the interface to ensure that the link is of good quality.
- Solution to cause 2:
Use the ppp chap command to reconfigure user names and passwords on both ends and ensure that the user names and passwords on both ends are the same.
- Solution to cause 3:
Use the ppp chap command to reconfigure user names and passwords on both ends and ensure that the user names and passwords on both ends are the same.
- Solution to cause 4:
Collect log information and configuration information, and then contact technical support personnel.