diff --git a/FAQ.md b/FAQ.md
index 13c3895..e796139 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -819,7 +819,9 @@ Otherwise, please follow below:
 
 The callback is the public URL of the API so `https://[yourservername]/api/oidc/callback` as long as you setup https and a public URL.  The Client ID and secret are part of the Azure application setup steps in [the instructions](https://rustdesk.com/docs/en/self-host/rustdesk-server-pro/oidc/azure/)
 
+# OIDC, common login error "failed to request the auth url" 
 
+https://github.com/rustdesk/rustdesk-server-pro/discussions/477
 
 # What are managed devices / Login users / concurrent connections in `Pro`?