Setup should check for WPA password lenth

[schweini]

It didnt work for me, until i saw in another issue haat it might be that my password was too short. When the password is too short (<8 chars), the program silently fails.

Simply checking that the entered password is long enough should fix that headache.

[vicwomg]

+1 I also ran into this. Additional WPA pw length restriction is that it must be under 63 chars