Issues with CISCO WIRELESS Controller (And resolution) | IT NETWORKS

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On Cisco Wireless controller 5520,


no copy right connection photo



The Access POINTS try to join the Controller by bringing up a connection through the CAPWAP Tunnel, you can see these attempts through the AP log itself.

The problem is that the DHCP server when trying to serve IP Addresses it shows the error BAD_ADDRESS in front of each IP assigned.

So I Took a single access point, started debugging it, after that, I noticed that the CAPWAP connection was empty of errors BUT!! it was trying to resolve this name 
CISCO-CAPWAP-CONTROLLER

This resolution is made with DNS protocol, of course, I honestly wasn't so sure of what I was doing, so I added a new entry in my DNS server and it's corresponding IP was the Controller's after that magically all the Access Points where UP and showed UP on my controller.

The controller I'm working with is the CISCO WIRELESS CONTROLLER 5520
Model: AIR-CT5520-K9
Software Version: 8.3.150.0

Image of the controller








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