Some 3rd party applications, such as SSL VPN clients do not support connecting though a loopback proxy. This document provides information on using the Symantec Windows executable LPSFlags.exe to add a list of one or more addresses to the proxy.pac file hosted by the Symantec Endpoint Protection (SEP) client Web Traffic Redirection (WTR) Local Proxy Service (LPS).
Configure the Proxy Auto Configuration (PAC) file
Before making any changes, compile a list of addresses that need to be exempted from connecting through LPS. The default PAC file hosted by LPS directs clients to send requests to internal (RFC1918, and APIPA) addresses, and plain hostname addresses directly instead of through LPS. Any resources hosted on a public IP address will need to be added to the PAC file. These can be specified either by Fully Qualified Domain Name (FQDN), IP address, or IP address range.