We recently had an issue where our MangoES stopped sending the automated report e-mails that it is set up for. It was pingable at the time, but I could not access the Web GUI. I did a power cycle, and the Mango then "disappeared" and became un-pingable. I have tried multiple power cycles and the USB utilities to reset the IP address, but the Mango did not respond to the USB drive being plugged in. I beleive that it is a version 2 unit (serial number appears to be 2147), so that could explain the USB not working. I'm not sure where to go from here. Is the referenced Network discovery tool still available? When I click on the link it just goes to the help page of the main website. I have tried using a network scanner to scan the subnet that it is supposed to be on, but no luck.