I’m using using the discourse openid connect plugin, and all of a sudden users are getting this error. Sorry, there was an error while trying to authorize your acocunt with OIDC. Please try again. Got a ticket open with IT team, but just wondering if anyone has seen this before. Thanks

That looks like the OpenID Connect (OIDC) login failing between your forum and the identity provider. I don’t have access to your server logs, but the admin can turn on verbose_auth_logs and then check /logs for the exact reason. That should show whether it’s a cookie/session mismatch, a claim misma…

OIDC Error

Support

screwballs September 8, 2025, 1:55pm 3

thanks. turned out to be expired client keys.

Topic		Replies	Views
OIDC Error for OpenAI Discourse forum Support openid-connect , hosted-support , fixed	8	117	April 11, 2026
OIDC plugin suddenly broken, silently fails for new users SSO openid-connect	3	656	December 9, 2023
OpenIdAuthenticator plugin fails Development	2	1235	February 27, 2019
Error of Discourse OpenID Connect SSO openid-connect , unsupported-install	6	1346	March 22, 2023
Discourse OpenID Connect (OIDC) Plugin official , included-in-core , auth-plugins , openid-connect	42	48299	March 14, 2026

OIDC Error

Related topics