It probably needs a driver. Please do the following:
- open a terminal window
- type lspci > ~/abs-wireless.txt <press enter>
- type lsusb >> ~/abs-wireless.txt <press enter>
- type iwconfig >> ~/abs-wireless.txt <press enter>
- type ifconfig >> ~/abs-wireless.txt <press enter>
Please note the first line has single ">", all the rest have 2. The above is creating a file in you home folder with some information we need.
Now post a reply back here, click the paper clip and attach the abs-wireless.txt file from your home folder.