Why will you locate a switch between the modem and the router ?:confused: If I were you, I would set a network like this: ISP ——Modem——Router——Switch——PC. In your case, when you connect your PC to...

As I know, some factors will affect the USB transfer speed. Such as High bandwidth application and the Length and the Quality of the USB cable and the Processor Capacity. It is a fact that the...

Haha, the best solution is to manually install the driver in device manager>network adapters. Have you tried that ?

Is it possible that there is a IP conflict between your devices ?:confused:

:(As I know, the TL-WR740N can not support this access method because of some unknown restriction.