_:n64694ce9f6b6494eb7e83ce3681be347xb7
<http://schema.org/text>
"Indeed it is!  Check the following items:First, for the WAN interface, make sure the option to redirect HTTP to HTTPS is turned off.Second, change the admin ports as well, as they tend to conflict with other things... like ActiveSync/OWA.  Make the admin ports 8080 and 44300, or some other unassigned port you know won't be used for anything else.  "
<https://community.spiceworks.com/topic/2080216-exchange-sonicwall-activesync-could-not-open-connection-to-server>