To force the RS2 to require the password at the connection step, you can click on the Forget button just before step 7. Then click on the network name again, and you will be able to enter the password again here.
Yes, I was able to get my Reach onto my home Wi-Fi. I’ve never changed that password. I’ve been using the Reach hotspot. Then I found out I needed to update the firmware from 28.4. I’ve done that, and everything should work fine.