I have signed up for two ddns addresses: Keith.dynu.net, and 10101rad.dynu.net. I have the dynu ip update client running in both places, but for some reason the keith.dynu.net is returning the number of the 10101rad.dynu.net instead of it's own ip! This used to work fine but for some reason today both names are returning the same number!

If you use only username and password for the client software, all the hostnames without location name in your account will be updated to the same IP address.

To update hostnames in different locations, you may set up a 'Location' name for the hostname in the control panel and fill in the 'Location' name in the client software. For more information, you may refer to https://www.dynu.com/DynamicDNS/IPUpdateClient/WindowsClient