How to test if port 443 is free?

Systems can only connect to the cloud server if port 443 is free or alternatively, if the endpoint URL *.gmgcolor.com is whitelisted in the firewall.

Test if the cloud can be reached:

1. Open Windows PowerShell
2. Paste the following: Test-NetConnection "gmgcolor.com" -port 443 -InformationLevel "Detailed"
   
   
3. If the result is "TestSucceeded =True" the connection is available

If the cloud server cannot be reached, you will get an error like this: