Known Unmanaged Client Install Issues: http://www.symantec.com/business/support/endpointsecurity/sep11_faq_customer-installations-issues-with-resolutions_int_112007%20partner(3)).pdf
Description: Users are unable to connect to a wireless connection when using Wi-Fi Protected Access (WPA).
Resolution: The unmanaged client installed from the CD does not include the rule to allow EAPOL* communication
Description: Windows Shares on the SBS machine become unexpectedly unavailable to remote workstations
The Symantec Endpoint Protection Client install was run directly from the Symantec Endpoint Protection CD menu. This installs an unmanaged client, which has a firewall rule active to block Windows Networking traffic.
Description: After an undefined period of time, workstations which are accessing Windows Shares on the Microsoft SBS, lose connection to them. From this time, no network drives can be mapped to the server. Note: this is a known product issue.
Description:DHCP server traffic becomes blocked to and from the Symantec Endpoint Protection Manager and workstations cannot get an IP lease.
Description: Slow performance after Symantec Endpoint Protection Manager is installed
Resolution: Symantec recommends 2 Gigabytes of RAM or more for optimal performance of the management sever.
Description: An unmanaged Symantec Endpoint Protection 11.0 client cannot access shared network folders when network threat protection is enabled. By default, the ports required to browse shared network folders are blocked by default on an unmanaged device.
Resolution: To enable network file and printer browsing, complete the actions below to resolve this issue: