After our MX450 updated the firmware to 17.10.2 overnight on Thursday, we had connectivity failures.  Slow loading or web pages not loading at all.  Some services such as our AD Sync to Google said we have no connectivity and failed.  This was across all OS platforms and for 2100 users.     It wasn't something we could troubleshoot at the time and we rolled back to 16.16 and everything returned to normal.  Does anyone have any thoughts or know where to begin?  I have any future upgrades paused on the firewall for 6 weeks but would like to be prepared for the future. ... View more