Having some recuring issues with Home Assistant loosing the Z wave module - last time I couldn't just restart the module and had to reboot the machine to get it all working. It was suggested I should put the PC on a UPS but I don't think power line drops are the issue - everything else on the box was running fine. Still it would be good to know what the power line is doing. I have a Kill-A-Watt and heard good things about Emporia Vue but I don't think either can log power line drops. It's a linux box running Ubuntu so I could look at the boot time to see when the current session started. HA runs in virtual box. Thought I was avoiding such issues by upgrading from X10... If the power line drop is long enough my appliances clocks are flashing and have to be reset but I would like to have more information on when and how long.