Do you firewall software active on your PC?  If so, try turning it off and see if a concert loads then.  If so, then you should be able to turn it back on and configure it to allow our player to communicate.

If not, are you at home or in an office?  If an office, it may be their firewall is blocking those requests.

If you need more help visit our CONTACT US page (link below) and our support group will help.