Unable to connect to indexer error on Sonarr and Radarr

Sonarr version - 2.0.0.5322
Radarr version 0.2.0.1293
Mono version - 5.18.0.240
Synology Diskstation DS218 - DSM Version 6.2.1-23824
Debug logs - 19-4-9 15:38:06.1|Warn|Newznab|Unable to connect to indexer [v0.2.0.1293] 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-5.18.0.240/external/boringssl/crypto/ec/ec.c:835 at Mono.Btls.MonoBtlsContext.ProcessHandshake () [0x00038] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake (Mono.Net.Security.AsyncOperationStatus status, System.Boolean renegotiate) [0x000a1] in <63552ca6ec3f4cb28de3f8c0aa59b164>: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 <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at Mono.Net.Security.AsyncProtocolRequest.ProcessOperation (System.Threading.CancellationToken cancellationToken) [0x000ff] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at Mono.Net.Security.AsyncProtocolRequest.StartOperation (System.Threading.CancellationToken cancellationToken) [0x0008b] in <63552ca6ec3f4cb28de3f8c0aa59b164>: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 <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at Mono.Net.Security.MonoTlsStream.CreateStream (System.Net.WebConnectionTunnel tunnel, System.Threading.CancellationToken cancellationToken) [0x00126] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at System.Net.WebConnection.CreateStream (System.Net.WebOperation operation, System.Boolean reused, System.Threading.CancellationToken cancellationToken) [0x001ba] in <63552ca6ec3f4cb28de3f8c0aa59b164>: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 <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at System.Net.WebConnection.InitConnection (System.Net.WebOperation operation, System.Threading.CancellationToken cancellationToken) [0x00141] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at System.Net.WebOperation.Run () [0x0009a] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at System.Net.WebCompletionSource1[T].WaitForCompletion () [0x00094] in &lt;63552ca6ec3f4cb28de3f8c0aa59b164&gt;: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 &lt;63552ca6ec3f4cb28de3f8c0aa59b164&gt;:0 at System.Net.HttpWebRequest.GetResponse () [0x00016] in &lt;63552ca6ec3f4cb28de3f8c0aa59b164&gt;:0 at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x0012f] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Common.Http.Dispatchers.FallbackHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x0009d] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Common.Http.HttpClient.ExecuteRequest (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookieContainer) [0x0007e] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Common.Http.HttpClient.Execute (NzbDrone.Common.Http.HttpRequest request) [0x00008] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Common.Http.HttpClient.Get (NzbDrone.Common.Http.HttpRequest request) [0x00007] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider.FetchCapabilities (NzbDrone.Core.Indexers.Newznab.NewznabSettings indexerSettings) [0x00084] in &lt;b938542dd9a14cfc824f9cd70d8df65b&gt;:0 at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider+&lt;&gt;c__DisplayClass4_0.&lt;GetCapabilities&gt;b__0 () [0x00000] in &lt;b938542dd9a14cfc824f9cd70d8df65b&gt;:0 at NzbDrone.Common.Cache.Cached1[T].Get (System.String key, System.Func1[TResult] function, System.Nullable1[T] lifeTime) [0x0006a] in <a1d4cd371e3f48118cccea718b1ace8d>:0 at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider.GetCapabilities (NzbDrone.Core.Indexers.Newznab.NewznabSettings indexerSettings) [0x00046] in <b938542dd9a14cfc824f9cd70d8df65b>:0 at NzbDrone.Core.Indexers.Newznab.Newznab.get_PageSize () [0x0000c] in <b938542dd9a14cfc824f9cd70d8df65b>:0 at NzbDrone.Core.Indexers.Newznab.Newznab.GetRequestGenerator () [0x0000b] in <b938542dd9a14cfc824f9cd70d8df65b>:0 at NzbDrone.Core.Indexers.HttpIndexerBase1[TSettings].GetRequestChain (NzbDrone.Core.IndexerSearch.Definitions.SearchCriteriaBase searchCriteria) [0x00000] in &lt;b938542dd9a14cfc824f9cd70d8df65b&gt;:0 at NzbDrone.Core.Indexers.HttpIndexerBase1[TSettings].TestConnection () [0x00019] in <b938542dd9a14cfc824f9cd70d8df65b>:0 19-4-9 15:38:06.4|Warn|Newznab|Unable to connect to indexer: Error: SecureChannelFailure (Authentication failed, see inner exception.) [v0.2.0.1293] 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-5.18.0.240/external/boringssl/crypto/ec/ec.c:835 at Mono.Btls.MonoBtlsContext.ProcessHandshake () [0x00038] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake (Mono.Net.Security.AsyncOperationStatus status, System.Boolean renegotiate) [0x000a1] in <63552ca6ec3f4cb28de3f8c0aa59b164>: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 <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at Mono.Net.Security.AsyncProtocolRequest.ProcessOperation (System.Threading.CancellationToken cancellationToken) [0x000ff] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at Mono.Net.Security.AsyncProtocolRequest.StartOperation (System.Threading.CancellationToken cancellationToken) [0x0008b] in <63552ca6ec3f4cb28de3f8c0aa59b164>: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 <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at Mono.Net.Security.MonoTlsStream.CreateStream (System.Net.WebConnectionTunnel tunnel, System.Threading.CancellationToken cancellationToken) [0x00126] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at System.Net.WebConnection.CreateStream (System.Net.WebOperation operation, System.Boolean reused, System.Threading.CancellationToken cancellationToken) [0x001ba] in <63552ca6ec3f4cb28de3f8c0aa59b164>: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 <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at System.Net.WebConnection.InitConnection (System.Net.WebOperation operation, System.Threading.CancellationToken cancellationToken) [0x00141] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at System.Net.WebOperation.Run () [0x0009a] in <63552ca6ec3f4cb28de3f8c0aa59b164>:0 at System.Net.WebCompletionSource1[T].WaitForCompletion () [0x00094] in &lt;63552ca6ec3f4cb28de3f8c0aa59b164&gt;: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 &lt;63552ca6ec3f4cb28de3f8c0aa59b164&gt;:0 at System.Net.HttpWebRequest.GetResponse () [0x00016] in &lt;63552ca6ec3f4cb28de3f8c0aa59b164&gt;:0 at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x0012f] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Common.Http.Dispatchers.FallbackHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x0009d] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Common.Http.HttpClient.ExecuteRequest (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookieContainer) [0x0007e] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Common.Http.HttpClient.Execute (NzbDrone.Common.Http.HttpRequest request) [0x00008] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Common.Http.HttpClient.Get (NzbDrone.Common.Http.HttpRequest request) [0x00007] in &lt;a1d4cd371e3f48118cccea718b1ace8d&gt;:0 at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider.FetchCapabilities (NzbDrone.Core.Indexers.Newznab.NewznabSettings indexerSettings) [0x00084] in &lt;b938542dd9a14cfc824f9cd70d8df65b&gt;:0 at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider+&lt;&gt;c__DisplayClass4_0.&lt;GetCapabilities&gt;b__0 () [0x00000] in &lt;b938542dd9a14cfc824f9cd70d8df65b&gt;:0 at NzbDrone.Common.Cache.Cached1[T].Get (System.String key, System.Func1[TResult] function, System.Nullable1[T] lifeTime) [0x0006a] in <a1d4cd371e3f48118cccea718b1ace8d>:0 at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider.GetCapabilities (NzbDrone.Core.Indexers.Newznab.NewznabSettings indexerSettings) [0x00046] in <b938542dd9a14cfc824f9cd70d8df65b>:0 at NzbDrone.Core.Indexers.Newznab.Newznab.TestCapabilities () [0x00013] in <b938542dd9a14cfc824f9cd70d8df65b>:0 19-4-9 15:38:06.4|Warn|NzbDroneErrorPipeline|Invalid request Validation failed: – Unable to connect to indexer, check the log for more details – Unable to connect to indexer, check the log for more details
Description of issue -
I’ve been getting the same error for the last few days on both sonarr and radarr. I deleted the sonarr app and set up from new, but still getting the same error. I have also signed up to a second indexer to ensure the problem was not with them - still get the same error. I’m not sure why it’s stopped working, any help would be appreciated.

Cheers

Seems to be related to a mono update.

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