Node with TLS handshake failure still able to join cluster #7838
Description
Version Information
Version of Akka.NET? 1.5.50
Which Akka.NET Modules? Akka.Remote
Describe the bug
When a this TLS handshake happened:
09/22/2025 23:22:20.465 [akkaProtocol-ssl.tcp%3A%2F%2FGISR%40%5B%3A%3Affff%3A10.50.4.102%5D%3A59714-3] TLS handshake failed on channel [[::ffff:10.50.4.101]:9100->[::ffff:10.50.4.102]:59714](Id=7530405e): [EXCEPTION: One or more errors occurred. (Authentication failed, see inner exception.) - ]: [INNER EXCEPTION: Authentication failed, see inner exception.
at System.Net.Security.SslStreamPal.AcquireCredentialsHandle(SslAuthenticationOptions sslAuthenticationOptions, Boolean newCredentialsRequested)
at System.Net.Security.SslStream.AcquireCredentialsHandle(SslAuthenticationOptions sslAuthenticationOptions, Boolean newCredentialsRequested)
at System.Net.Security.SslStream.AcquireServerCredentials(Byte[]& thumbPrint)
at System.Net.Security.SslStream.GenerateToken(ReadOnlySpan`1 inputBuffer, Int32& consumed)
at System.Net.Security.SslStream.NextMessage(ReadOnlySpan`1 incomingBuffer, Int32& consumed)
at System.Net.Security.SslStream.ProcessTlsFrame(Int32 frameSize)
at System.Net.Security.SslStream.ForceAuthenticationAsync[TIOAdapter](Boolean receiveFirst, Byte[] reAuthenticationData, CancellationToken cancellationToken)]: [INNER EXCEPTION: The credentials supplied to the package were not recognized - at System.Net.SSPIWrapper.AcquireCredentialsHandle(ISSPIInterface secModule, String package, CredentialUse intent, SCH_CREDENTIALS* scc)
at System.Net.Security.SslStreamPal.AcquireCredentialsHandle(CredentialUse credUsage, SCH_CREDENTIALS* secureCredential)
at System.Net.Security.SslStreamPal.AcquireCredentialsHandleSchCredentials(SslAuthenticationOptions authOptions)
at System.Net.Security.SslStreamPal.AcquireCredentialsHandle(SslAuthenticationOptions sslAuthenticationOptions, Boolean newCredentialsRequested)] One or more errors occurred. (Authentication failed, see inner exception.)
The node were still able to join the cluster and communicate with other nodes
Expected behavior
Networking shouldn't be possible since TLS failed