Ok, dMb got it working. Not sure if I should be posting here giving the age of the thread, but other forums directed me here as the 'official' thread.
Same issue with a DIR-655, Firmware 1.34NA, Hardware A1/A2.
Done multiple hardware resets, reloaded factory config more times then I can count. Used three different browsers in 2 different OS's. Tried multiple variations in the name (with space(s), no space(s), all numeric, all text, alphanumeric.
Went to try the firmware that Bett0 told dMb to try, but
An Error Has Occurred!
The topic or board you are looking for appears to be either missing or off limits to you.
Admittedly I have not tried setting up access control before setting up wireless yet, but I don't see why I should wipe my router clean just to modify an access control schedule.
Guess its time to pull out my linksys router.