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How does symantec endpoint protection update definition work? Which port does the service use? Thanks a lot. I found some computers can not update definition automatically successfully, although I have reinstall symantec software. Subject: symantec endpoint protection 14.3 update definition fail Check your LiveUpdate policy configuration and connectivity to SEPM. If your client is on-prem SEP and managed by a SEPM, it may be configured to get definitions only from the SEPM. Check LiveUpdate logging: C:\ProgramData\Symantec\Symantec Endpoint Protection\CurrentVersion\Data\Lue\Logs If using default LiveUpdate, your clients would connect to a LiveUpdate server on HTTP 80 or HTTPS 443. It depends on what product you are using - on-premises SEP client (managed or unmanaged) or cloud-managed SES - and also upon your LiveUpdate configuration. Subject: RE: symantec endpoint protection 14.3 update definition fail
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