Without seeing the engineering drawings it is hard to tell. Usually unless the WiFi is a separately installed option board it is often less expensive...
The connection light and activity light blinking on the switch plus the traffic light on the NIC is an indication that the switch is detecting jabber...
Unless you have all the proper straps needed to properly secure everything in the truck and while it is on the lift gate, hire a professional moving...
I did try running ping. It ran without error but after a little over 5 minutes printing stopped. Looking back now, what might have helped would have...