I have been experiencing a DHCP lease problem where a number of users who connect to an SSID receive an invalid subnet lease (or wrong DHCP allocation), whilst other users can connect to the same SSID and receive a valid IP address assignment.
All of my APs are in FlexConnect mode and the problem is not AP specific (this occurs across all the APs).
The Cisco Wireless LAN Controller (WLC) and all the APs are on software version is 220.127.116.11
The WLC is configured with a static IP address of 0.0.0.0 to discover and find the external Windows DHCP server.
Any help would be greatly appreciated.
- Check the DHCP server's logs for the particular mac-addresses from the clients getting a 'wrong ip' ; check wether the dhcp scopes are correctly configured (e.g.).