[Mainconsole] License activated can not connect to the server

Symptom

Customers cannot activate license on Mainconsole.

It shows "License activated can not connect to the server".

Root cause

1. The PC does not connect to Internet.

2. The PC can not connect to license server. 

Solution

1. Please make sure your PC is able to connect to internet

2. Use telnet to test license server "licence.nuuo.com 443" is without any issue. If the test is fail, please check your firewall doesn't have any deny rule for port 443.