Currently chasing my tail with a newly installed Anchor WLC. Foreign WLC's are running 18.104.22.168 (mix of WiSM1's and 4404's) and the Anchor is a 2504 running 22.214.171.124. We have both the control and data paths up between foreign and anchor controllers but clients are not getting an IP address from the anchor controller.
On the guest interface configured on the anchor the primary dhcp server ip address is set to the management IP and we've confirmed that dhcp proxy is enabled.
We've also been through the guest WLAN config with a fine toothcomb and can confirm that all settings are the same. The anchor is sat behind an ASA.