ZScaler intermittent issues with AXE5400
I've been using the router for a couple of months and am happy with it generally. However a big issue seems to be with my wifes ability to connect to her work system when WFH. They user the zscaler VPN service to access the private work network. I've read various other posts about issues with the Deco systems and Zscaler. The issue isn't all the time - about half of the day it works and half of the day zscaler just won't connect on our home network. If I get the machine tethered through my phone it works. We've also tried public wifi and that of neighbours which all work.
Reading other posts it sounds like a potential issue with the FW and HomeShield (which I pay).
Is there a fix for this? On the other posts it is marked as having a solution but reading through them its a live issue.