Is it possible to do this? (Nvg510)

Well i have an old Nvg510 gateway from when i had service through AT&T U-verse, but I have long been through with them...but is what im trying to do is connect my nvg510 to a public WiFi HoTspot next to my house so that the signal will be alot stronger for my laptop to pick up. How would i go about doing this? is it possible? Im not having much luck on anything through google.

I appreciate any assistance with this!

Ps- Im running Linux (Ubuntu 12.04)

 

So you want your wired modem to connect to a public wireless WiFi hotspot outside your house?

 

well the nvg510 is a wireless gateway, where did you get wired? i would like to be able to run a broadband cord from the gateway to a desktop if i wanted, but im just wanting to connect to it via my laptop.