Dear Community/Sophos KB maintainers,
I would like to suggest Scenario 6:
502 page - server sent invalid response by using XG WAF
first double check all settings @ XG.
Then check ssl v2 & ssl v3 settings @ server. these should be off.
If not switched off, please do so, restart your apache/iis/server and check again.
Most likely problem is solved.
Hi Arno van der Veen - IT's Secured
Thanks for your suggestion!
I'll forward this over to our KB team for discussion. I'll reach out to you when I hear back.
Thank you again for reaching out with your suggestion!
Our KBA team has updated the Sophos XG Firewall: WAF troubleshooting guide with an additional section for this situation.
To say thanks, I have sent you a PM with your Sophos Store reward!