I also tried upgrading from 2.01 to 2.02. I followed all the instructions, DHCP, used Java discovery tool, hard reset and I still have problems. The discovery tool takes a long time to find the unit and when it does, it does not display the firmware version. When I try to connect to it, it does not connect or I get the login, but nothing after that. When I look at the attached devices from my router, the IP address for the EZServe will show up and then a few seconds later it will disappear, only to show up again a few seconds after that.
Looks like I will have to TFTP to 1.60 and try to upgrade from there.