Your network connection may be blocked by the firewall running in the background. This problem can be solved by adding ScanSnap Manager to the firewall exception list.
(For the method to add to the firewall exception list, refer to the manual of the firewall that you are using.)
When you add a program to firewall exception, the port that the program uses can receive a contact from outside. Please be aware of the risk it may cause before changing the firewall setting and configure it on your responsibility. Our company will not bear any responsibility for any damage or failure that is caused by this change.