diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/Drivers/DriverInstanceActor.cs b/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/Drivers/DriverInstanceActor.cs
index 780ec925..d3c8a29f 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/Drivers/DriverInstanceActor.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/Drivers/DriverInstanceActor.cs
@@ -326,6 +326,8 @@ public sealed class DriverInstanceActor : ReceiveActor, IWithTimers
             ResubscribeDesired();
             AttachAlarmSource();
         });
+        // A failure here is a no-op regardless of generation — the retry timer keeps trying the
+        // current config; only a (generation-matched) InitializeSucceeded transitions state.
         Receive<InitializeFailed>(_ => { /* keep retrying via timer */ });
         Receive<SetDesiredSubscriptions>(StoreDesiredSubscriptions);
         Receive<ForceReconnect>(_ => { /* already reconnecting — no-op */ });