Your router is WDR4300? There is IP&MAC Binding indeed as I check its emulator. http://www.tp-link.com/resources/simulator/wdr4300/index.htm

Any problem with the driver? Desribe in details?

Try different USB ports or different computers and check if the adapter can be detected under Computer Management----Other Devices or Device Manager. If nothing, your adapter should be defective. Is...

Windows 7? http://www.tp-link.com/en/faq-439.html Out of curiosity, why do you set up a broadband connection on your PC instead of putting username and password on web interface of W8960N directly?

Try to disable UPnP.

Buy a USB dongle which is in compatiblity list of MR3040, which is the most quick solution. http://www.tp-link.com/en/support/3g-comp-list/?model=TL-MR3040&location=1949 As to those which are not in...