You might get belkin router blinking orange problem. due to following things.
1. Cable Connection.
2. ISP problem.
3. Firmware problem.
First you should check the router settings, make sure your router is properly connected to the modem.
your modem is connected to the internet port of the router.
Also, you should check the internet connection on your modem.
If you are not getting internet then you need to contact to your isp and ask them for the solution.
For more information you may visit: http://www.support-articles.com/belkin/my-belkin-router-blinking-orange-not-working-problem/