I have a computer with Outlook 2016 that randomly stops receiving email about twice a day. When this happens the little last connected to server at [Time] appears on the bottom of the Outlook window. Outlook can still send emails. A reboot or cycling the VPN off and on again fixes this issue temporarily.
Disabling cached exchange mode in Outlook fixed this for a few hours, but then in came back again.
Has anyone run into this before? Does anyone know of a permanent fix?