Depending on how many computers you have connected to the system, it might be easier to simply do a hard reset of the system and start over from scratch, if you only have one or two computers connected wirelessly. This can be done by locating the reset button, and using a pin to press the button for about five seconds. That will wipe all your settings and return the unit to factory defaults.
That being said, if the problem is that your wireless devices are unable to connect, you should be able to access the configuration menus by connecting a computer to the router with Ethernet cable and edit the settings as needed. The settings can usually be printed by printing out the summary page, but this requires being able to access the configuration pages of the router.
Edited by InterestinglyAverage, 31 January 2009 - 07:30 PM.