[Networking help]

I tried to join discord but it says its invalid.

I have the monthly subscription right now and have been trying to set everything up for a few days now and cant get it working. I have followed this tutorial on using google for a host 3 times over now and I have gotten different errors each time. It has been an authentication server error, then it was cannot connect to the tcp world server, and now it is saying: 

Database test connection Failed: Authentication method 'caching_sha2_password' not supported by any of the available plugins.
UnityEngine.Debug:LogError(Object)
Atavism.DatabasePack:TestConnection(String, Boolean) (at Assets/Dragonsan/AtavismEditor/Editor/EditorCore/Libraries/DatabasePack.cs:266)
Atavism.ServerDataBase:DrawDataBase(Rect, String) (at Assets/Dragonsan/AtavismEditor/Editor/Plugins/ServerDataBase.cs:268)
Atavism.ServerDataBase:Draw(Rect) (at Assets/Dragonsan/AtavismEditor/Editor/Plugins/ServerDataBase.cs:185)
Atavism.AtavismUnity:OnGUI() (at Assets/Dragonsan/AtavismEditor/Editor/EditorCore/AtavismUnity.cs:371)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr) (at C:/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:179)

 

On the server side, I am also keeps saying license verification failed, even though I have double checked my license key and my email address. I have my windows firewall turned off, I can ping the public IP of the google instance, and verified the ports are open with a port checking tool. 

[Invalid license]

I am using the 14 day trial just to test out the product but when I try and set it up I keep getting 'License verification failed.' 

I double checked the license I key and my email. I am using Google as my host and followed the set up exactly.