Anecdotally, yes, that seems to do it, but, disclaimer: YMMV, depending on anything in your LAN that might be blocking the communications, or whether it is sunny out vs. rainy. To be clear, removing the device from the dashboard and then re-adding it will wipe out the settings that are now on the device. So you might as well delete it off of the dashboard, unplug the Ethernet cable, then restore it to factory defaults by keying in ***8 the 1 and waiting. After you do this, plug in the Ethernet cable again, and re-add it to the dashboard, it looks like a new device that needs a firmware update.