I feel like this is a fairly straightforward thing but I can't seem to pin it down.
After the last Outlook Security issue I went ahead and double checked some firewall configurations. I found 445 not blocked at some sites. When a deny rule is setup VPN users cannot access shares.
Here's a screenshot of the basic config I did for Outgoing.
VPN is configured as a basic L2TP connection to the Meraki itself. Users are authenticated with Active Directory.
I think its something simple like just allowing my VPN users to use port 445 (they are on a different subnet when VPN'd in) but that doesn't seem to make it right.
Anyone else have this come up?