The only thing that hasn't worked right since then is my printer. Both networks recognize it (in that it shows up as an option) but neither will connect to it. If I want to print something, I have to take my laptop out to the family room (where the range extender is), then connect to the printer directly (it acts as its own network connection, but of course with no internet access). Print my document or pic, then disconnect and reconnect to my internet connection. Pain in the butt and I'm not sure how to fix it.
On some printers, one must first connect to it with a wired LAN connection, after that the wireless will work.