Hello All,
Just wanted to update this post with a solution.
To recap..... We have two controllers
North-(Local (Backup)) & South-(Master)
We originally configured (via console) our AP's according to which controller was the closest e.g.
Northern-AP Southern-AP
setenv ipaddr 10.3.1.1 10.2.1.1
setenv netmask 255.255.0.0 255.255.0.0
setenv gatewayip 10.3.0.1 10.2.0.1
setenv serverip 192.168.1.10 192.168.0.10
setenv master 192.168.1.10 192.168.0.10
Everything was working until.....
We then needed to change (re-provision) all Northern AP's to use the Southern controller.
Doing this via the GUI lead to the Northern AP's constatnly flapping between both controllers and showing/flapping the flags D (Dirty) & I (inactive).
The solution-
Disbale ADP on the Northern-(Local) controller.
Although configured manually we found that ADP was not helping our setup.
This fixed the majority of re-provisioned AP's
Next for those stuborn AP's that still kept falpping. We re-re-provisioned with a new IP in the same range.
E.g for an AP that had IP 10.3.1.1 we moved it to 10.3.1.10.
All AP's are now using the Southern-(Master) controller.