Trying to debloat Shield with ADB - keep getting "bad IPv6 address"

I'm following this guide (there aren't really any others), but unfortunately, it is not super detailed or contextual, so someone like me with no idea what they're doing finds it a bit hard to follow.

When I type in the "adb connect [IP address]" command (Step 1b), no matter what address I enter, it spits out "bad IPv6 address." I am in fact on the same network on both my laptop and my Shield.

I don't really know where to go from here or what to try. There is not a lot of comprehensible help information on ADB out there that I've found. Any tips?

EDIT: Fixed - god, I'm a fucking idiot. I left the "[]" around my IP address. That was my issue lmao.