OK. Up at my place. Have the thermostat installed and it is showing that it is connected to the internet. BTW - I changed my name - it is not 'blandolodge' to try and keep the hackers out!!
Here is how I have port forwarding set and dyndns filled in on my router (below) and the dyndns.com set up page
(on the DynDNS page, I have 'blandolodge' typed in and for the IP address, I am using 192.168.0.xxx for the thermostat which is what it is showing on the router's status page.
I typed in 'blandolodge:6280' but no response in the browser.
Thoughts? ON the Router's DYNDNS page (middle jpeg belo: I wasn't sure if the username or HOST name is correct? Guessed on username or should I change host name to 'blandolodge.dyndns.com?