Similar experience.
I've had my WS1400 for about two weeks now, and a day ago I got an email that it is not sending data.
I looked at the LAN unit, all lights looked fine, I tried to access it via IP, no response.
Power cycled, and it could connect, and a while later I could see WUG is again reporting data.
Already running the latest 1.0.9 software.
Any ideas?
P.