Title: Custom domain SSL certificate stuck in validation
tombacklof
HOBBYOP

an hour ago

I'm experiencing an issue with SSL certificate provisioning for a custom domain purchased and managed through Railway.

The domain is attached to a frontend service, and the Railway-generated URL works correctly. However, the custom domain remains stuck with the following status:

"Certificate Authority is validating challenges"

When attempting to access the domain over HTTPS, I consistently receive:

SEC_E_WRONG_PRINCIPAL (0x80090322)

Troubleshooting completed:

  • Verified that the domain's DNS resolves correctly.
  • Confirmed the DNS target matches the Railway-provided target.
  • Verified that the domain ownership TXT record is publicly accessible.
  • Removed and reattached the custom domain.
  • Confirmed the frontend service is running correctly.

Unfortunately, the certificate validation issue persists.

Has anyone experienced something similar with Railway-managed domains? Is there a way to manually restart certificate provisioning, or is this something that needs to be resolved on Railway's side?

Any suggestions would be appreciated. Thanks!

Awaiting Railway Response

1 Replies

Status changed to Awaiting Railway Response Railway • 17 minutes ago


tombacklof
HOBBYOP

a minute ago

Update: Additional DNS verification completed

I've completed some additional troubleshooting:

  • The domain's ANAME target resolves correctly.
  • The domain verification TXT record is publicly accessible.
  • A DNS CAA lookup returned no CAA records, so there appear to be no certificate authority restrictions.
  • The application works through its Railway-generated domain.
  • Removing and reattaching the custom domain did not resolve the issue.

The custom domain continues to show "Certificate Authority is validating challenges", and HTTPS requests fail with SEC_E_WRONG_PRINCIPAL.

Is there a known issue with SSL certificate provisioning for Railway-purchased domains, or a way to restart the ACME validation process?

Any guidance would be appreciated.


Status changed to Awaiting Railway Response Railway • 1 minute ago


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