Most of the sites not working on macOS Sonoma with WSS Agent enabled

Products

• Cloud Secure Web Gateway - Cloud SWG

Issue/Introduction

Most of the sites not working on macOS Sonoma with WSS Agent enabled irrespective of the browser

When browsing site immediatly getting connection reset error in browser. 

Environment

macOS sonoma

WSS Agent configured with block IPv6 traffic (i.e. Allow IPv6 traffic unchecked in WSS Agent Configuration) Reference link Set Agent Network and Security Options

Cause

In macOS Sonoma, a change in behavior with respect to IPv6 has been observed and where the traffic does not fall back to IPv4 if IPv6 is blocked.

Resolution

To resolve this issue we run the following command from terminal to disable IPv6 on Wi-Fi adapter and post that sites were accessible with WSS Agent enabled.

sudo networksetup -setv6off "Wi-Fi"