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HS08
Valued Contributor
May 19, 2026
Solved

Eap sub-module failed

Anyone know wbaout below error and how to fix this when try configure the eap-tls?

failed continuing EAP TLS (13) session. EAP sub-module failed

HS08
HS08Answer
Valued Contributor
May 20, 2026

The problem was fixed, previously i upload the CA certificate to General Trusted CA but the right path is upload to Radius Endpoint Trust

3 replies

sjoshi
Staff
Staff
May 19, 2026

Hi ​@HS08 

Are you seeing this error on FortiAuth?

Could be due to expired eap cert.

Refer:

 

Thanks, Salon
HS08
HS08Author
Valued Contributor
May 20, 2026

Sorry not mentioned before, the error is from fortinac where i try to implement 802.1x and seem the client always got authentication failed and from fortinac got error

(201) rest_reject: Module-Failure-Message := "Eap-MY_RADIUS: Failed continuing EAP TLS (13) session.  EAP sub-module failed"

HS08
HS08AuthorAnswer
Valued Contributor
May 20, 2026

The problem was fixed, previously i upload the CA certificate to General Trusted CA but the right path is upload to Radius Endpoint Trust

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