I'm using DeeEnEs so I might be able to help. What I would do is stop my line monitor by clicking on the "Stop Monitor" button and then uninstall DeeEnEs.
Then setup up your monitor again making sure you have both the current IP address entered and the the "Dynamic IP" box checked when you set it up. After the monitor starts working correctly, then download DeeEnEs again and reinstall it using your new "Unique number for dynamic DNS client" by following: »Re: DeeEnEs Problems
TH ~ NE ~ EPN ~ NC ~ TD