End-users using Symantec Endpoint Protection (SEP) for Mac and Web Traffic Redirection (WTR) reported repeated prompts for proxy authentication.
macOS 10.13.x and 10.14.x
This issue is fixed in Symantec Endpoint Protection 14.2 RU1 MP1. For information on how to obtain the latest build of Symantec Endpoint Protection, see Download the latest version of Symantec software here.