This is probably a long shot but...we recently upgraded from sonic to meraki firewalls on our network. We offer a public FTP site that is dmz'ed to our customers.
That FTP is a windows server 2008.
Prior to the meraki upgrade we had no trouble accessing that FTP site. Now, even internally the FTP site will either just time out or flat say the page cannot be found.
I'm just throwing that out there to see if there is something I can check or anything really.
I appreciate any insight.