macOS WSS Agent hosts unresponsive after waking up from sleep or hibernation

Products

• Cloud Secure Web Gateway - Cloud SWG

Issue/Introduction

Corporate users accessing internet via Cloud SWG using WSS Agent access methods.

Starting early April, multiple users reporting no network connectivity for Mac users when being away from desk for period of time, or after leaving machine on overnight.

Symptoms include lost connectivity to my Wifi, routing table disappearing, DNS failing and having no network connectivity.

Only seemed to appear with macOS 15.4 systems, and looking at network interfaces at the time of the issue, we self assigned IP addresses and not DHCP assigned.

Removing the WSS Agent will still show the issue.

Restarting the machine fixes the issue, or restarting network services manually.

Environment

WSS macOS Agent 9.8.1/9.8.3

macOS version: 15.4; 15.4.1

Cause

3rd party issue with macOS.

Resolution

Apple has addressed this as of macOS 15.6 beta 1 - upgrade to this version.