We recently changed our wifi network password from the standard code that is on the modem to one that is easier to remember. The next day when we turned on our TV to watch Netflix, it gave me an error that said "Your device may not be connected to the internet. Please make sure your connection is working and try again. Code: nw-1-1000" Then it gave me the options to Try Again, More Details or Exit.
We were using a Smart TV to access our Netflix. If you are having the same issue, use the "Menu" option on your TV (not Netflix) to reset your password and you should be good to go!