An attempt was made to access a socket in a way forbidden by its access permissions

If you get an error message including the words An attempt was made to access a socket in a way forbidden by its access permissions, please try the following: 

• Disable your antivirus software and re-run the toolkit installer. 

Here is the full error message that you would have seen:

Confirming machine registration ...
Connecting to server ...
Error: System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions 54.183.186.33:80
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception)