Ap associating with a different WLC through DNS

[Udupikrishna091]

Hello Guys,

I have some 5 ap in the network, since 2 days I have got into a issue, all the access points have registered with a different WLC which is in our main office instead of getting registered with the local WLC, need help on this issue. It does a DNS resolution and gets connected to the central WLC, but the same setup is running up in multiple locations.

Regards

Krishna

[Scott Fella · Accepted solution]

It is best to configure the primary and secondary WLC in the high availability. This way if something happens and the ap joins the wrong WLC, it will move back. This is the issue if you keep option 43 enabled and or DNS resolution. If you want to make sure that AP's at a local site stays on that WLC, block udp 12222 & 12223 from crossing the wan. This way the AP's will not join the WLC at HQ. makes sense?

Sent from Cisco Technical Support iPhone App

[Udupikrishna091]

Hi Scott,

Thanks for the reply, I configured the primary and secondary WLC in high availability and the issue got resolved

Regards

Krishna

[Saravanan Lakshmanan]

+ you could also try.

WLC-5500/2500>config hreap join min-latency enable CISCO_AP

When you enable this feature, the access point calculates the time between discovery request and discovery response and joins the 5500/2500 series controller that responds first.