I have two locations I need to remote connect to. I have setup two separate DDNS names and put an update client on a computer at each location. The update client updates both locations rather than just the one associated with that location. How do I configure the update client to update a specific DDNS entry rather than all entries on my account?

You can assign different Location names to your hostnames in the control panel and use the particular location name in the 'Settings' tab of the IP update client.