Does anyone else have any other suggestions? Its not all our PC's (W7 and 10) just random, sometimes Release/Refresh DNS works, connecting to my phones hotspot, or disabling anti virus for a while also fixes the issue but just for a while. 'Running Outlook in safe mode once, then back in normal mode fixes the problem for a day or two.Removing the OST file and letting Outlook re-download the email fixes it for a day or two.Removing the profile all together and setting up a new profile fixes it for about a week.I even formatted the hard drive and reinstalled everything, that worked for about two weeks, and now.
We are having the same issues with 32 Bit Outlook 2016 running in a 365 Exchange environment as stated from 'Our Nerd'