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ebilcari
Staff
Staff
December 17, 2024

Troubleshooting Tip: Repetitive RADIUS log error

  • December 17, 2024
  • 2 replies
  • 990 views
Description This article describes a new behavior observed in the RADIUS logs.
Scope FortiNAC v9.4.7 and FortiNAC-OS v7.2.8, v7.4.0, v7.6.0.
Solution

There is a new RADIUS health check mechanism introduced in these firmware versions that causes a repeating log to be generated (approx. every 30 seconds). These logs can be identified by the red color and the mention of [nonExistUser]. An example line:

 

Tue Dec 17 09:54:03 2024 : Auth: (2537) Login incorrect (No Auth-Type found: rejecting the user via Post-Auth-Type = Reject): [nonExistUser] (from client localhost port 0)

 

From FortiNAC GUI it is shown like this:

 

nonexist.PNG

 

Currently, these error logs can be safely ignored. On the next firmware release, this output will be hidden from the logs to avoid confusion while reading the RADIUS logs.

    2 replies

    b34rded-1der
    Explorer II
    June 30, 2026

    This appears to still be present in 9.4.8. 

    I assume the fix is to migrate to FortiNAC-F?

    ebilcari
    Staff
    ebilcariAuthor
    Staff
    August 4, 2026

    This fix was not included in the older firmware branch. Please upgrade to one of the supported firmware branches.

    Emirjon
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