How to make a USB port (or any port) primary?

[Smitiz]

I have a promblem with a specific piece of equipment.

Its a Dell desktop PC and a 3D scanner.

The scanner only wants to work with 1 USB port on the back, when its plugged in any others it dosent connect to the PC.
The other ports work great with other USB equipment like mouse etc.

Its okay I can live with that... ^^

BUT the control program wants to look for the scanner in the LAN Gigabit port sometimes for some strange reason, and I can only connect it if I disable the network card in the device manager. When its disabled and plugged in the right USB port, its wotking like a charm

Does anyone have an idea?
I'm using win7 64bit and a 1,5 year old Dell (model number later)

 

[Phillip Corcoran]

Try uninstalling the scanner driver completely.
Unplug the scanner.
Re-install scanner driver.
Plug scanner in to your preferred USB port and switch it on when the driver installer program prompts you to do so.