Apparently Davis heard from us and updated to firmware 1.08
I received this email from Davis today
Login to your WeatherLink IP account; then click on MY ACCOUNT, to that you can check the firmware revision of your datalogger.
If it says your firmware is version 1.07, then visit this link & follow the instructions to update your firmware to version 1.08 BETA: http://toolbox.davisnet.com/downloads/Weather/firmware/wlip/WeatherLinkIP_108_BETA/
I believe this will prevent the lockups you are experiencing.