We have 3 WLCs running 6.0.188 that Cisco tells us we need to upgrade to 7.098 to fix a client connectivity issue. We have 64 access points all of which connect to our primary WLC (WLC1) the secondary controller (WLC2) is presently only being used for failover for (WLC1) we have a 3rd controller (WLC3) which is in our DMZ acting as an anchor controller for our guest network.
I have two questions;
1) I need to know if anyone has seen any issues with 7.098 that would make us not want to upgrade. And
2) 2) In the above configuration does anyone have any recommendations as to upgrade strategies? Secondary first roll all APs then Primary??
Thank you for your support. I have several other sites to do once this one is upgraded so any advice would be greatly appreciated.