One indexer (althub) not working, but it is on radarr?

[bcsteeve]

Sonarr version (exact version): 3.0.3.849
Mono version (if Sonarr is not running on Windows):5.20.1.34
OS: Ubuntu 18.04
Debug logs: see below
Description of issue: “Indexers unavailable due to failures: Althub.co.za” I have quadruple checked my settings, and it is identical on Sonarr as it is on Radarr, yet it passes on Radarr and fails on Sonarr.

I tried pastebin as instructed, but it fails as too large. The following seems to be the appropriate section of the logs, but let me know if you really need the full thing and I’ll try to work around the size issue.

20-6-2 20:51:10.4|Error|X509CertificateValidationService|Certificate validation for https://api.althub.co.za/api?t=caps&apikey=(removed) failed. RemoteCertificateChainErrors
20-6-2 20:51:10.4|Warn|Newznab|Unable to connect to indexer

[v3.0.3.849] System.Net.WebException: Error: TrustFailure (Authentication failed, see inner exception.): 'https://api.althub.co.za/api?t=caps&apikey=(removed) —> System.Net.WebException: Error: TrustFailure (Authentication failed, see inner exception.) —> System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception. —> Mono.Btls.MonoBtlsException: Ssl error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED

[markus101]

Trace logs with that error and surrounding lines would be useful, dropbox and google drive are also good for full files.

[Taloth]

Unless you’re on Radarr Aphrodite that’s kinda an expected difference coz the old one (and Sonarr v2) disabled cert validation.

Your system certificate store is out of date.

run apt policy ca-certificates to check it out.
ensure it’s updated to 2019.
Then run update-ca-certificates to make sure mono’s certificate store is updated as well.
You may have to restart sonarr afterwards.

[bcsteeve]

That resolved it! Thank you very much.