Issue adding indexers

Sonarr version (exact version): 2.0.0.5344
Mono version (if Sonarr is not running on Windows): 5.20.1.34
OS: SYNOLOGY DS218play (DSM 6.2.3-25426 Update 2)
Debug logs: System.Net.WebException: Error: SecureChannelFailure (Authentication failed, see inner exception.): ‘https://api.nzbgeek.info/api?t=caps&apikey=1ec51d66bc524954e64176026d9f1b63’ —> System.Net.WebException: Error: SecureChannelFailure (Authentication failed, see inner exception.) —> System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception. —> Mono.Btls.MonoBtlsException: Ssl error:0f000078:elliptic curve routines:OPENSSL_internal:POINT_IS_NOT_ON_CURVE
at /spksrc/spk/mono/work-aarch64-6.1/mono-5.20.1.34/external/boringssl/crypto/ec/ec.c:835
at Mono.Btls.MonoBtlsContext.ProcessHandshake () [0x00038] in :0
at Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake (Mono.Net.Security.AsyncOperationStatus status, System.Boolean renegotiate) [0x000a1] in :0
at (wrapper remoting-invoke-with-check) Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake(Mono.Net.Security.AsyncOperationStatus,bool)
at Mono.Net.Security.AsyncHandshakeRequest.Run (Mono.Net.Security.AsyncOperationStatus status) [0x00006] in :0
at Mono.Net.Security.AsyncProtocolRequest.ProcessOperation (System.Threading.CancellationToken cancellationToken) [0x000ff] in :0
at Mono.Net.Security.AsyncProtocolRequest.StartOperation (System.Threading.CancellationToken cancellationToken) [0x0008b] in :0
— End of inner exception stack trace —
at Mono.Net.Security.MobileAuthenticatedStream.ProcessAuthentication (System.Boolean runSynchronously, Mono.Net.Security.MonoSslAuthenticationOptions options, System.Threading.CancellationToken cancellationToken) [0x00252] in :0
at Mono.Net.Security.MonoTlsStream.CreateStream (System.Net.WebConnectionTunnel tunnel, System.Threading.CancellationToken cancellationToken) [0x00126] in :0
at System.Net.WebConnection.CreateStream (System.Net.WebOperation operation, System.Boolean reused, System.Threading.CancellationToken cancellationToken) [0x001ba] in :0
— End of inner exception stack trace —
at System.Net.WebConnection.CreateStream (System.Net.WebOperation operation, System.Boolean reused, System.Threading.CancellationToken cancellationToken) [0x0021a] in :0
at System.Net.WebConnection.InitConnection (System.Net.WebOperation operation, System.Threading.CancellationToken cancellationToken) [0x00141] in :0
at System.Net.WebOperation.Run () [0x0009a] in :0
at System.Net.WebCompletionSource1[T].WaitForCompletion () [0x00094] in <c5f4e317158343a5916a953327f92540>:0 at System.Net.HttpWebRequest.RunWithTimeoutWorker[T] (System.Threading.Tasks.Task1[TResult] workerTask, System.Int32 timeout, System.Action abort, System.Func1[TResult] aborted, System.Threading.CancellationTokenSource cts) [0x000f8] in <c5f4e317158343a5916a953327f92540>:0 at System.Net.HttpWebRequest.GetResponse () [0x00016] in <c5f4e317158343a5916a953327f92540>:0 at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x0011b] in <faeb8209b6ff4c15aabf93dc8df43c9f>:0 --- End of inner exception stack trace --- at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x001f6] in <faeb8209b6ff4c15aabf93dc8df43c9f>:0 at NzbDrone.Common.Http.Dispatchers.FallbackHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x0003c] in <faeb8209b6ff4c15aabf93dc8df43c9f>:0 at NzbDrone.Common.Http.HttpClient.ExecuteRequest (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookieContainer) [0x0007e] in <faeb8209b6ff4c15aabf93dc8df43c9f>:0 at NzbDrone.Common.Http.HttpClient.Execute (NzbDrone.Common.Http.HttpRequest request) [0x00008] in <faeb8209b6ff4c15aabf93dc8df43c9f>:0 at NzbDrone.Common.Http.HttpClient.Get (NzbDrone.Common.Http.HttpRequest request) [0x00007] in <faeb8209b6ff4c15aabf93dc8df43c9f>:0 at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider.FetchCapabilities (NzbDrone.Core.Indexers.Newznab.NewznabSettings indexerSettings) [0x0009a] in <4d3cc4e5f7ed4ed2814d83bdaf94809e>:0 at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider+<>c__DisplayClass4_0.<GetCapabilities>b__0 () [0x00000] in <4d3cc4e5f7ed4ed2814d83bdaf94809e>:0 at NzbDrone.Common.Cache.Cached1[T].Get (System.String key, System.Func1[TResult] function, System.Nullable1[T] lifeTime) [0x0006a] in :0
at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider.GetCapabilities (NzbDrone.Core.Indexers.Newznab.NewznabSettings indexerSettings) [0x00046] in <4d3cc4e5f7ed4ed2814d83bdaf94809e>:0
at NzbDrone.Core.Indexers.Newznab.Newznab.get_PageSize () [0x0000c] in <4d3cc4e5f7ed4ed2814d83bdaf94809e>:0
at NzbDrone.Core.Indexers.Newznab.Newznab.GetRequestGenerator () [0x0000b] in <4d3cc4e5f7ed4ed2814d83bdaf94809e>:0
at NzbDrone.Core.Indexers.HttpIndexerBase`1[TSettings].TestConnection () [0x00007] in <4d3cc4e5f7ed4ed2814d83bdaf94809e>:0
Description of issue: Hi y’all, I can’t seem to add an indexer with Sonarr… It’s been one month or so. I tried to search on reddit or other websites for fixes but I’m stuck. Tried to change SSL/TLS settings on DSM, does not change a thing. Uninstalled reinstalled both MONO and Sonarr, same issue.
Tried also with Sonarr beta v3 same issue.

Try downgrading mono - https://github.com/SynoCommunity/spksrc/issues/3946#issuecomment-612562594

Thanks it worked, but it’s a temporary fix, Sonarr v3 won’t support Mono 5.8…

You can try some of the more up to date packages there, but I can’t make any promises

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