(i'm also a little confused. i thought the tablet did periodic searches for nearby routers and automatically connects to previously saved connections. you might find that the tablet connects all by itself if you wait long enough.)
It should connect automatically if you open a bookmark in the browser. From power on, you could try:Left side, top corner (I think that's the default location for the bookmark menu...) 1" from left, slightly above center: first bookmark. If you're in online mode, it should just connect.If you're in offline mode, you'll shortly hear a notification beep; this signals the "Exit offline mode?" D-pad center: selects OK Wait ~10 seconds, while "Select connection" comes up and scans. Don't wait too long, though, or you may catch it in the middle of a rescan. D-pad center: selects top entry, which will be a memorized connection if one is found. And you're done; should be accessible via SSH now.