I am trying to set up my new Doser 2.1 and have been having issues. Your download page is not working but I was able to find the GHL Control Center v 1.1.0.0 in a dropbox link on the GHL forum. I connected the USB cable and added the Doser 2.1 in the Control Center, but it says it is unable to connect. I am not sure if the issue is that I could only find the beta version or if I am just missing something. It seems pretty straightforward, except it is not working. My settings are below. Can you offer any advice?