Cause of Erratic Behavior With Tethered Shooting

The first time I tried tethered shooting with my Nikon D3 and D2XS, I experienced very erratic behavior, including the import window popping up and images not downloading from the camera even though the software said they were.
I struggled with these issues for over an hour and discovered a very simple fix: Consult the camera manual. Nikon specifies a very specific procedure. First, make sure any CF cards you have in the camera are empty. Second, change the camera's USB setting to MTP/PTP. Third, TURN THE CAMERA OFF (VERY IMPORTANT). Fourth, connect the camera to your computer. Fifth, launch the software and go into Tether mode. Sixth, turn the camera on and start shooting.
When I did this, everything worked perfectly. The erratic behavior disappeared.
One other word of advice. Give a few extra seconds for the first image to download. They seem to speed up after that.

I would set both express in bridge mode and set to join or create its own network.
If you want excellent range then use ethernet to the express, set in bridge mode, set to create its own network and place the express more middle of the house.
Regarding the TC , keep it in an open environment especially if using N only mode(signal strength).

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