Change country in Wireless Settings. Do you have wireless card in your computer?

If you have Windows give me screen shot from ipconfig /all when you have connection with router via ethernet.

Without Huawei E173 in USB port is everything ok?

ping 192.168.1.1 is answering?

We can see DHCP address on ethernet card now. Try http://tplinklogin.net I've noticed now that lan n.2 is always blinking, even when cable isnt connected... This indicates a hardware problem with the...

I can't see DHCP address from router. Please try reset 30/30/30 - http://www.jimasek.elektroda.eu/index.php/poradniki/66-hard-reset-30-30-30