mobile

I have faced a big problem with WiFi signal last time when I used Shield in internet coffee, I thought this is a problem with coffee shop not my tablet , but ilwhen I went back home I have faced same issue with my router even I can browse the internet in my laptop but I cannot do anything with my tablet, so I am planning to use Ethernet to Micro-USB 2.0 adaptor so I can connect my tablet to the router via wire.
I looked on Amazon, but I don't know what product I have to go with ...



Any suggestions guys ...??