Can I use the same DynamicDNS user on two different computers at the same time?
Although you can install the desktop client on multiple computers, you CANNOT use the same DynamicDNS user on two different computers at the same time. In fact, if you attempt to activate DynamicDNS on a second computer (using the same DynamicDNS user), then you will be forced to log in to the Optimum Online Web hosting powered by Hostway SiteControl to “reset” the user thereby closing the connection to the first computer.