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This issue can also occur when there are time synchronization issues between the client agent and the management server. If everything else checks out, check the Operations Manager event log for any error events generated by the OpsMgr Connector. Common causes and resolutions for various OpsMgr Connector events are listed below. The error code is L A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

Please verify there is network connectivity, the server is running and has registered its listening port, and there are no firewalls blocking traffic to the destination. Usually these event IDs are generated because the agent hasn't received configuration. After a new agent is added and before it is configured, this event is common. Event in the agent's Operations Manager event log indicates that the agent received and applied configuration.

You receive this event after communication is established. If auto-approval for manually installed agents isn't enabled, confirm that the agent is approved. This event can potentially indicate that Kerberos authentication is failing.

Check for Kerberos errors in the Event Logs and troubleshoot. Check if the DNS suffix has an incorrect domain. For example, the computer is joined to contoso1. Make sure the default domain name registry keys are correct. To verify, make sure that the following registry keys match your domain name:. To find the duplicate SPN, run the following command:. This error can apply to either the Kerberos or the SChannel package. Event IDs , and are usually caused by firewalls or network problems that are preventing communication over the required ports.

To troubleshoot this issue, check the firewalls between the client agent and the management server. The following ports must be open to enable correct authentication and communication:. This may either be because no management groups are currently configured or a configured management group failed to start. The Health Service will wait for policy from Active Directory configuring a management group to run.

If the agent is using Active Directory assignment, the event logs will also indicate a problem communicating with Active Directory. If you see these event logs, confirm that the client agent can access Active Directory. Check firewalls, name resolution and general network connectivity. The most likely cause of this error is that the agent is not authorized to communicate with the server, or the server has not received configuration. Check the event log on the server for the presence of events, indicating that agents which are not approved are attempting to connect.

When you see these events, it indicates that authentication occurred but then the connection was closed. This usually occurs because the agent hasn't been configured. To verify this, check whether event ID A device which is not part of this management group has attempted to access this health service is received on the management server.

These event logs can also occur if client agents are stuck in a Pending status and not visible in the console. The current out-of-date state cookie is "5daec9d3f8f7ae,af60d48edfbb23ed67ddA3".

These events can occur when the delta synchronization process cannot build configuration within its configured timeout window of 30 seconds. This can occur when there is a large instance space. To resolve this issue, increase the timeout on all management servers.

To do this use one of the following methods:. Add the following registry value on the server that's running System Center R2 Operations Manager to configure the timeout:. The default value for the placeholder nn is 30 seconds. You can change this value to control the timeout for delta synchronization. We have one of our Gateway servers in Grey state. When i had checked the eventviewer of the server could find lots of events and OpsMgr connector errors.

The ability for this Health Service to communicate will likely be impacted. These items have been discarded because no valid route exists at this time.

This can happen when new devices are added to the topology but the complete topology has not been distributed yet. The discarded items will be regenerated. Expand the personal store and there should be a certificate that scom uses for the GW server.

Was the GW server working properly before? Yes the GW server was fine till yestrday and all agents were healthy. Were valid certificates imported on GW and its corresponding MS. We have not imported any GW or MS certificates in the past few days. The Microsoft Download Manager solves these potential problems. It gives you the ability to download multiple files at one time and download large files quickly and reliably. It also allows you to suspend active downloads and resume downloads that have failed.

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