if you say that you could open the portal page of the smartbro well i think you have an internet connection,it's just that you need to login to the portal using the user id and password given to you or if you forgot it you could call their tech support hotline for them to give it to you. you could also try these if you are able to login to the portal page properly but still can't surf the net:
1. clear everything on your browser (cookies,history etc.)
2. try disabling your firewall/antivirus for the mean time while setting up the connection to your desktop
3. set your DNS manually. right-click local area connection -> status -> properties -> select TCP/IP then click
properties -> click only "use the following DNS server" and use these DNS servers (you could experiment on each if
the other fails)
208.67.220.220 - primary
208.67.222.222 - alternate
4.2.2.1 - primary
4.2.2.2 - alternate
4. if all else fails,try giving the tech support hotline of smartbro a call for them to further assist you on the concern
hope this could help you transfer the connection from your laptop to your desktop pc