Can you take a picture of the blue screen to see if it provides any helpful information? Do you have the latest drivers for your Ethernet adapter installed?
Also, "OEM hub" isn't very descriptive. Even if it's a Dell device, Dell has made several adapters over the years. Additionally, a USB to Ethernet adapter and a hub are not the same thing. Are you plugging the adapter into a hub? What is the exact model of the Ethernet to USB adapter you're using? It should be printed on the device somewhere. If not, connect the adapter WITHOUT plugging an Ethernet cable into it and check Device Manager. Expand Network Adapters and let us know what model is shown there.