Look on the client to see if the client connects to the management server

You can download and view the troubleshooting file on the client to verify the communication settings.

See How to determine whether the client is connected and protected.

See Checking the connection to the management server on the client computer.

See Investigating protection problems using the troubleshooting file on the client.

Test the connectivity between the client and the management server

You can perform several tasks to check the connectivity between the client and the management server.

Check that the management server uses the correct server certificate

If you reinstalled Symantec Endpoint Protection Manager, check that the correct server certificate was applied. If the management server uses a different server certificate, the server still downloads content, but the client cannot read the content.. If the management server uses the wrong server certificate, you must update it.

See Updating or restoring a server certificate.

See Best practices for updating server certificates and maintaining the client-server connection.

Check for any network problems

Check the debug logs on the client

You can use the debug log on the client to determine if the client has communication problems.

See Checking the debug log on the client computer.

See Checking the inbox logs on the management server.

Recover lost client communication

If the clients have lost the communication with a management server, you can use a tool to recover the communication file.

See Restoring client-server communication settings by using the SylinkDrop tool.