Internet Explorer 11 will not connect to the internet while using PAC file, Firefox and Chrome successful

Products

• Cloud Secure Web Gateway - Cloud SWG

Issue/Introduction

When attempting to connect with Internet Explorer, the connection fails.  However, Firefox and Chrome work successfully.

405 Error

Environment

Windows 10 Enterprise

Version 1903

OS Build 1

8362.418

Cause

A bug within Microsoft OS that prevents you from establishing a virtual private network (VPN) connections. 

 

 

Resolution

Upgrade Windows 10 Enterprise to OS Build 18632.449