This is a great update to the RACHEL Plus software. The instructions are very clear.
One question, after uploading the new software with rsync, is it required to restart the RACHEL Plus? (I did and it worked fine).
On another note, I located the IP address of the RACHEL Plus by viewing the connected devices on my router. My RACHEL Plus was listed as WRTD-303N-Server. I've read that this string (or something close to it) is the default SSID for the system. That may help you locate the device and its IP address.
Another way to try is to view the connected devices on your router before and after connecting the RACHEL Plus. The new device should be the RACHEL Plus. (Pretty obvious, I know