Internet Problems

Hello All,

So i don't know exactly where to start but here it goes...when i bought my computer it did not have any way to connect to a WiFi signal so i had to buy a USB device that allowed me to connect to the internet ,and it has never been a problem my internet connection has always been great. Recently i moved house and for some odd reason when ever i turn on my computer and try to use the internet the WiFi for the whole house goes down. It is a big problem and i was wondering if anyone could help. if you need any additional information please let me know.

Thank You.