Communication error between UCM baseboard and Z-wave sub-module

[Ian]

I have added a couple of z-wave window sensors to my z-wave network. I want to add them to comfort as part of the alarm system.I did the usual \'learn\' procedure and after a couple of attempts it started to learn. Then Comfigurator stopped learning and the primary controller showed an error message.I tried again but nothing is happenning.Now I see an error in red in the bottom left of the Comfiguratot window; Communication error between UCM baseboard and Z-wave sub-module.I have restarted both Comfort and the primary controller (HomeSeer)
Any suggestions of what may be wrong?Comfort 2 UltraZ-wave module

[Ian]

OK - I powered down then up the UCM and it now seems to be talking to the z-wave again!

[slychiu]

Zwave is a bit flaky sometimes. I am glad you got it working