It connects, but can't go further because it's looking for authentication before allowing that. Make sure you have the correct SSID, proper password, passkey, or hex code for the WEP or WPA encryption setup for the wifi (router) you are trying to connect to. Above assumes a "side by side" installation.
If instead this is installed to a virtual system, other steps can be applied.
My down loaded linux mint was not working, so I bought a copy of linux mint and installed on a windows machine , It worked after couple of try , now I've problem connection internet, before installation while trying mint , it was connection to internet (wifi) , but after installation
it is not connecting to internet.
I've 2 network available, my mint is able to connect to both the networks, but firefox is showing server not found, not sure linux mint issue or firefox issue.