fix #5912
diff --git a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
index 5436517..b3b1abf 100644
--- a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
+++ b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
@@ -494,7 +494,8 @@
                 }
 
                 var ex = Assert.ThrowsAsync<RpcException>(async () => await call.ResponseStream.MoveNext());
-                Assert.AreEqual(StatusCode.DeadlineExceeded, ex.Status.StatusCode);
+                // We can't guarantee the status code always DeadlineExceeded. See issue #2685.
+                Assert.Contains(ex.Status.StatusCode, new[] { StatusCode.DeadlineExceeded, StatusCode.Internal });
             }
             Console.WriteLine("Passed!");
         }