Sorry, I gave instructions for the new unreleased version.
You need to edit the file /mnt/persist/config.xml. It’s an XML file and it should look something like this:
Save the file and restart the box.
Just in case you don’t know what these are (or if someone else bumps into this thread that doesn’t)… The
gateway are your router’s IP. The
address field is your desired address. And netmaks is usually 255.255.255.0 (unless you know that it’s not, in which case you don’t need my explanation about what it should be).