Error "Symantec CMC Smc has encountered a problem and needs to close. We are sorry for inconvenience." after installing Symantec Endpoint Protection (SEP) Client

Article:TECH106103  |  Created: 2008-01-02  |  Updated: 2008-01-25  |  Article URL
Article Type
Technical Solution


How do I resolve this error "Symantec CMC Smc has encountered a problem and needs to close. We are sorry for inconvenience."


Disable/Uninstall all third party firewall applications (also antivirus) including Windows firewall.
  1. Uninstall the currently installed version of SEP 11 through the Control Panel > Add/Remove Programs.
  2. Restart the computer.
  3. Verify that SEP is completely removed by reviewing the following document:
    Title: How to manually uninstall Symantec Endpoint Protection client from Windows 2000, XP and 2003, 32-bit Editions
    Document URL:
  4. Install the currently available version of SEP 11.
  5. Ensure anyother remaining firewall or antivirus applications are still disabled.


Ports used for communication in Symantec Endpoint Protection 11.0

FunctionLocationProtocolPort range
General communication via IISBetween clients and Symantec Endpoint Protection ManagerHTTP (TCP)80
Secure communication via IIS (optional)Between clients and Symantec Endpoint Protection ManagerHTTPS (TCP)443
Internal communication via ApacheManager to Manager, Console to Manager, Enforcer to ManagerHTTPS (TCP)8443
Browser-based remote console via ApacheFrom browser to ManagerHTTP (TCP)9090
Embedded database communicationFrom Manager to embedded databaseTCP2638
Microsoft SQL database communicationFrom Manager to Microsoft SQL databaseTCP1443
Group Update ProviderFrom Group Update Provider to clientsTCP2967
Protection Manager SemSvc.exeThe Protection Manager listens on the Tomcat default portTCP8005

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