When I used the Arduino IDE, I was getting all kinds of goofy results when the Line Termination was set to none. And CR LF did not work. I had to set it to just LF in Arduino IDE.
Can you try to use Cool Term http://freeware.the-meiers.org/
It’s available for Win, Mac and Linux. I just tried it on Windows 7 and it worked without changing any settings. Just make sure you have your Core in Listening Mode first, then open Cool Term… and if it doesn’t complain that it couldn’t find any ports, you probably will get it to connect to your Core by pressing the Connect button. If you have multiple serial ports, make sure to select the right one in Options first. The line terminations seem to be correct in Cool Term.
To clarify, when you type
i your ID should pop up without you pressing ENTER. Also if you then type
w without pressing enter, SSID: should come up. Type in SSID and then press your first ENTER. Security doesn’t always come up for me depending on the network or something else… it could be the ENTER thing. If it does, type one number and press ENTER. Then type your password and press ENTER. You cannot backspace or it won’t work! so type slowly and accurately.
EDIT: aha… good I see you got it! Must have been the line termination. Putty works for me as well.