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In a scenario like this, having at least one additional WLAN controller for redundancy is an advantage. To avoid having to manually adapt the settings on all of the cluster devices, a configuration synchronization can be set up assuming that the LANCOM the LANCOM High Availability Clustering Option (HA cluster) is available.

Hinweis
  • A change of WLAN controller interrupts all ongoing sessions (when operating as a gateway). These have to be reestablished by the end devices. 
  • In particular when operating as a Public Spot, please note that the user information, such as the accrued online time, is not transferred to other WLAN controllers. The online time for Public Spot users basically begins anew.
  • As an alternative you can also configure the WLC cluster manually (no HA cluster).



Requirements:

  • LCOS as of version 9.10 (download latest version)
  • LANtools as of version 9.10 (download latest version)
  • At least two LANCOM WLAN controllers
  • LANCOM High Availability Clustering Option Option (for configuration synchronization)
  • The second WLAN controller (slave) must initially be unconfigured and still with its factory settings.
    • Under no circumstances is the option Certificate authority (CA) active in the menu Certificates → Cert. authority (CA) to be enabled on the second WLAN controller (slave)!

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1.1) Configuring the first WLAN controller (master):

1.1.1) Perform the basic setup on the first WLAN controller (master).

1.1.2) Assign the first WLAN controller (master) a descriptive device name in the menu Management → Admin (in this example WLC-Master).

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If the configuration synchronization (Config Sync) between the cluster members does not work, you can follow the steps in the Troubleshooting guide: Configuration synchronization doesn't work anymore (Config Sync).