Cisco Wireless Controller will not detect the Access Points

I have a Cisco 2000 Series Wireless Lan Controller with 3 Cisco Airenet 1131AG Access Points.  It work wonderfully for over a year.  In December we had a power outage and ever since then my Wireless Lan Controller has been communicating with the access points.  I can still web access the controller just fine but it shows 0 APs found.  On the controller there is a green light (100), a green light (10), and a yellow (activity) for each access point.  If the access point is plugged in the green (100) lights up, so they are being detected, but there is no activity.  I have of course cycled the power many times. I have searched for the original IP and MAC address with no luck.  Can someone please assist me?
VaughnIndAsked:
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Robert Sutton JrConnect With a Mentor Senior Network ManagerCommented:
Ok, but is the range correct? And if the DHCP server needs to have the ip changed, it should be done in the server side, not the WLC side. I'm assuming the WLC is set to the correct Ip for that server??

If not, you would have to set that Ip for that interface.
Conf t<enter>
WLC-config>interface xx<enter>
WLC-config-IF> ip address <xxx.xxx.xxx.xxx> <NetMASK>  <enter>
Hold CTRL and hit Z
wr or wr mem <enter>

This should change your iP for that interface ONLY.... Again, if its the server Ip that needs to be changed then that should be done on the server siude provided that the Address block range in the WLC is correct.

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Robert Sutton JrSenior Network ManagerCommented:
Are they showing up in the config? The individual access points as 802.11xx.1, 802.11x.2, etc?
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VaughnIndAuthor Commented:
No they are not showing up at all in the controller.  
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Robert Sutton JrSenior Network ManagerCommented:
Then, your config isn't setup. At least it didnt boot to the proper config. ....

Go here and view standard setup since I dont know your LAN topography or your current config...

http://www.cisco.com/en/US/products/hw/wireless/ps430/products_configuration_example09186a0080665cdf.shtml#aps
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VaughnIndAuthor Commented:
Maybe I am too much of a novice but is it telling me I have to null modem and hyper terminal in again, rather than using the web interface?
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Robert Sutton JrSenior Network ManagerCommented:
You may have to initially to see what the issue is.... You can use a serial cable and hyperterminal into the device using the following settings on your hyperterminal:

Terminal Emulation:
VT100
8-None-1
 
Then you can directly console into the device and see what the problem is..... Essentially allowing you to see the file structure for the web GUI.....
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VaughnIndAuthor Commented:
I think I am on to something and hopefully you can help.  My DHCP server on my network has changed, but this is still pointed at the IP for the old one.  Where can I change that IP address.  I have been looking in the web interface with no luck so I connected the Null Modem and am Hyper terminalled in but I can't figure out the commands to change it.  Everything I see is to set the IP range the WLC gives out.
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VaughnIndAuthor Commented:
That didn't actually work, but you totally put me on the right track.  Once I knew the problem it was way easier to reset the controller and start from scratch.  That work beautifully.  Thanks for the help.
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