WIFI not working

Hello, I am new here from Canada, hope you are all fine and I have a problem.

I have completed the assembly & calibration of the Altlas 3D Scanner.  I am however have troubles trying to get the WIFI to work. I tried using a freshly formatted 4GB & 2GB USB flash-drives but the Raspberry pi wouldn't write the ATLAS3D_Windows.hta file to either flash-drive.  I then connected a monitor, mouse and keyboard.  The keyboard locks up frequently but I was able to go to settings and then network.  The WIFI dongle is able to pick up my Network Name (SSID) but after inputting the Key code the pi would say connecting to WIFI and hang there for 20 mins or more until I cancelled it.

Also I only get the right laser to come on when scanning.  Does the other laser come on after one complete rotation of the table?  I saw a video that showed both lasers alternating as the table turned.

Dan