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Cisco AIR-CAP3502I-E-K9 not connecting to WLC-8510

When i try to connect an AP on a specific VLAN the AP is constantly blinking green, and i get this error message from the AP using an console cable "Could not discover WLC. Either IP address is not assigned or assigned IP is wrong. Renewing DHCP IP." If i use another VLAN there is no problem at all. Any tips on how to fix this?

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Re: Cisco AIR-CAP3502I-E-K9 not connecting to WLC-8510

The dhcp scope was full of BAD ADDRESS, when i deleted those the AP's joined the WLC again.

View solution in original post

6 REPLIES 6
Collaborator

Re: Cisco AIR-CAP3502I-E-K9 not connecting to WLC-8510

 

 - Make sure hosts on that VLAN can reach the DHCP server and or that the helper-settings are in place, if needed.

 M.

Hall of Fame Master

Re: Cisco AIR-CAP3502I-E-K9 not connecting to WLC-8510

Make sure the ap gets an up address. What you mentioned is typical when the ap is not getting a dhcp address. Connect a laptop to the same port and verify the laptop gets an ip.
-Scott
*** Please rate helpful posts ***

Re: Cisco AIR-CAP3502I-E-K9 not connecting to WLC-8510

The dhcp scope was full of BAD ADDRESS, when i deleted those the AP's joined the WLC again.

View solution in original post

Hall of Fame Master

Re: Cisco AIR-CAP3502I-E-K9 not connecting to WLC-8510

This is an issue with MS dhcp server and if the ap can't reach the controller. You will have to monitor and clean up bad address in the future.
-Scott
*** Please rate helpful posts ***
Beginner

Re: Cisco AIR-CAP3502I-E-K9 not connecting to WLC-8510

What is the Cisco WLC software version?

 

Hall of Fame Community Legend

Re: Cisco AIR-CAP3502I-E-K9 not connecting to WLC-8510

That's because the other VLAN has DHCP Option 43 enabled.
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