We are in the process of moving our Data Center from STL to Dallas. I have a new Master Controller with the same config as the existing controller minus the interface updates.
We attempted to swing our local controllers over to the new Master tonight. I changed the Master IP on the local controller, saved, and reloaded. The Local controller came up on the new master with no issues.
The AP's attached to the Local controller also came up with no issues but the RAP's did not. Previous to the change we made a DNS entry update to ping the master.com name to the new external IP address. We checked several dns lookup services to verify the change had propagated.
I have a local RAP3 and I rebooted it for it to reconnect to the original Master Controller.
My question is do the RAP's cache the dns entry? If so, how can that be cleared remotely to move these to the new Master? If not, what would be the reason this RAP's are not attaching back to the New Master?
Any help is greatly appreciated.
Daniel