9870-03J
[Windows] The scanning process takes time to complete after the original is scanned (Color Network ScanGear 2)
Communication may not be allowed via the UDP port in Windows Firewall. Follow the procedure below to allow communication via the UDP port.
NOTE
Screens and operations may differ, depending on the environment of your computer and the following conditions.
The device you are using and its settings, firmware version, and option configuration
The driver you are using and its version
1
Select [Settings] 
[Network & Internet], in Windows.
[Network & Internet], in Windows.2
Click [Advanced network settings] [Windows Firewall] in [Status].
[Windows Firewall] in [Status].3
Click [Advanced settings] on the bottom of the [Firewall & network protection] screen.
4
On the [Windows Defender Firewall with Advanced Security] screen, select [Inbound Rules] → select [Action] [New Rule].
[New Rule].5
In [New Inbound Rule Wizard], select [Port] → click [Next].
6
Select [UDP] → enter "56338" in [Specific local ports] → click [Next].
7
Select [Allow the connection] → click [Next].
8
Select [Private] only → click [Next].
9
Enter an arbitrary name in [Name] → click [Finish].