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Test failure: HandleEventShutdownInitiatedByTransport fails with AuthenticationException : Authentication failed because the remote party sent a TLS alert: 'UserCanceled'. #133515
Description
System.Net.Quic.Tests.QuicListenerTests.Listener_BacklogLimitRefusesConnection_ParallelClients_ClientThrows(backlogLimit: 10, connectCount: 10) [FAIL]
System.Security.Authentication.AuthenticationException : Authentication failed because the remote party sent a TLS alert: 'UserCanceled'.
Stack Trace:
/_/src/libraries/System.Net.Quic/src/System/Net/Quic/QuicConnection.cs(657,0): at System.Net.Quic.QuicConnection.HandleEventShutdownInitiatedByTransport(_SHUTDOWN_INITIATED_BY_TRANSPORT_e__Struct& data)
/_/src/libraries/System.Net.Quic/src/System/Net/Quic/QuicConnection.cs(771,0): at System.Net.Quic.QuicConnection.HandleConnectionEvent(QUIC_CONNECTION_EVENT& connectionEvent)
/_/src/libraries/System.Net.Quic/src/System/Net/Quic/QuicConnection.cs(806,0): at System.Net.Quic.QuicConnection.NativeCallback(QUIC_HANDLE* connection, Void* context, QUIC_CONNECTION_EVENT* connectionEvent)
--- End of stack trace from previous location ---
/_/src/libraries/System.Net.Quic/src/System/Net/Quic/Internal/ValueTaskSource.cs(176,0): at System.Net.Quic.ValueTaskSource.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
/_/src/libraries/System.Net.Quic/src/System/Net/Quic/QuicListener.cs(247,0): at System.Net.Quic.QuicListener.StartConnectionHandshake(QuicConnection connection, SslClientHelloInfo clientHello)
/_/src/libraries/System.Net.Quic/src/System/Net/Quic/QuicListener.cs(192,0): at System.Net.Quic.QuicListener.AcceptConnectionAsync(CancellationToken cancellationToken)
/_/src/libraries/System.Net.Quic/tests/FunctionalTests/QuicListenerTests.cs(348,0): at System.Net.Quic.Tests.QuicListenerTests.Listener_BacklogLimitRefusesConnection_ParallelClients_ClientThrows_Core(Int32 backlogLimit, Int32 connectCount)
/_/src/libraries/System.Net.Quic/tests/FunctionalTests/QuicListenerTests.cs(359,0): at System.Net.Quic.Tests.QuicListenerTests.Listener_BacklogLimitRefusesConnection_ParallelClients_ClientThrows_Core(Int32 backlogLimit, Int32 connectCount)
Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1588649
Build error leg or test failing: System.Net.Quic.Tests.QuicListenerTests.Listener_BacklogLimitRefusesConnection_ParallelClients_ClientThrows
Pull request: #133441
Error Message
DO NOT USE JSON BELOW IF THIS IS A BUILD BREAK otherwise build analysis will allow pull requests to merge that break the build worse. For a build break, do not use this issue form. Make a regular new issue.
Fill the error message using step by step known issues guidance.
{
"ErrorMessage": ["AuthenticationException","HandleEventShutdownInitiatedByTransport"],
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1588649
Error message validated: [AuthenticationException HandleEventShutdownInitiatedByTransport]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 9/9/2026 6:11:46 PM UTC
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 0 | 11 | 31 |
Activity
dotnet-policy-service commentedon Sep 9, 2026
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