"No connectivity to the proxy server" on ProxySG/Edge SWG when forwarding to Web Isolation Cloud

Products

• Web Isolation Cloud

Issue/Introduction

You see the error, "No connectivity to the proxy server," when forwarding to Web Isolation Cloud from EdgeSWG (formerly ProxySG)

Cause

A bad cache for Web Isolation resources URLs. EdgeSWG/ProxySG may not be forwarding Web Isolation resources URLs as a result.

 

Resolution

You can use one of the options:

1. Implement the bypass_cache(yes) policy.
   

   define url.domain condition FG-URL
   
   global-shared.fire.glass 
   global-noauth-shared.fire.glass 
   shared.fireglass 
   noauth.shared.fireglass 
   docisolation.prod.fire.glass 
   docisolation-eu.prod.fire.glass
   
   end
   
   <proxy>
   condition=FG-URL bypass_cache(yes)

2. Disable Block third-party cookies in a browser.

 

 

Additional Information

https://techdocs.broadcom.com/us/en/symantec-security-software/web-and-network-security/web-isolation/1-16/Symantec-Threat-Isolation-Overview/Making-Sure-Third-Party-Cookies.html