Hello,
Ever since upgrading my pfsense box to the latest version 2.6.0 from 2.5 I’m having intermittent issues with Office 365 from all my devices (mobile, PC browser).
Sometimes emails send and OneDrive uploads, sometimes it outright fails and sometimes it takes multiple retries to go through. All this is solved by reverting pfsense back a version.
I run PiHole for DNS filtering which Iv completely removed and shutdown and the issue still continues.
Iv also completely disabled IPv6 as I thought this was causing issues but it doesn't seem to have helped.
Iv spent forever trialing though DNS and pfsense logs and I’m still nowhere nearing finding out what’s causing this. Iv looked through the pfsense 2.6.0 release notes and can’t find anything that might break my config.
Iv also tried a completely fresh pfsense install (with basic...