Cannot ping Baxter

[Zedespook]

Resolve methods we tried:

• Direct connection with the development computer. (Avahi setup was successful, but still could not ping Baxter.)
• Router connection (from the same network).
• We attempted to log in with SSH, but if we follow the documentation, the user or password is not valid.

We booted into an Ubuntu live environment. We could ping the machine from there, so we don't think it's a hardware, rather a problem with the Gentoo Linux running under Baxter.