NETGEAR ProSAFE WC7500 User Manual page 296

WARNING:
Enabling redundancy causes the redundancy process on the
primary wireless controller to restart, which might temporarily
affects traffic on the managed access points in the network.
9. Click the Apply button.
Your settings are saved. After the configuration of the primary controller synchronizes
with the redundant controller, redundancy goes into effect.
10. Select Monitor > Controller > Summary.
The Summary page displays for the controller.
11. Click the REFRESH button.
The Summary page displays the new redundancy information.
ProSAFE Wireless Controller
Manage Stacking and Redundancy
296