MagicJack suddenly cannot connect to Internet error

My neighbor asked for my help, after some troubleshooting here's how I fixed problem:

1. Corrected the system clock
2. Downloaded upgrade from http://upgrades.magicjack.com/upgrade/upgrade.exe
3. Executed the upgrade.exe
4. Success!

This maybe on a case to case basis. Others might need to enabled ports 5060 and 5070.