Troubleshooting connectivity problems between
Symantec Endpoint Protection Manager
and the
Symantec Endpoint Protection
client

If you have trouble with client and server communication, you should first check to make sure that there are no network problems. You should also check network connectivity before you call Symantec Technical Support.
You can check the communication between the client and the management server in several ways.
Checking the connection between the management server and the client
What to check
Solution
Look on the client to see if the client connects to the management server
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:
You can verify that the management server uses the wrong server certificate by checking the following items:
Check for any network problems
You should verify that there are no network problems by checking the following items:
  • Test the connectivity between the client and the management server first. If the client computer cannot ping or Telnet to the management server, you should verify the DNS service for the client.
  • Check the client's routing path.
  • Check that the management server does not have a network problem.
  • Check that the Symantec Endpoint Protection firewall (or any third-party firewall) does not cause 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:
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:
If
Symantec Endpoint Protection Manager
displays logging errors or HTTP error codes, see the following article: