It turns out I was mistaken in my conclusion that the wizards work if you change the information from what was stored before - they don't. I found that choosing "Manual Setup" in the Admin panel is actually easier and faster than using the wizards, and it always works. I recommend doing a manual setup of the Wireless aspect first, choosing an SSID, security and password of your own. This will stick and you can have all your devices use it. Then when you are at a new location, run Manual Setup for Internet to select either WiFi Hotspot or DHCP (for Ethernet), as needed.