With an AP as of LCOS version 9.00, you can delay the band steering to the 2.4-GHz band under .
- Initial block time
- If an access point with a 5-GHz DFS radio module is put into operation for the first time, and also following a restart, it cannot detect any dual-band capable WLAN clients during the DFS scan. As a result, the access point cannot direct a WLAN client to a preferred 5-GHz band. Instead, the 2.4-GHz radio module would answer the client request and forward it to the 2.4-GHz band.
By setting an initial block time, the radio module that is configured to 2.4-GHz only responds to client requests after the specified delay. The default value is 10 seconds.
The delayed response to the 2.4GHz probes causes WLAN clients, which would otherwise expect to find an access point in the 2.4GHz band, to scan again in the 5GHz band.
Note: Registration of a purely 2.4-GHz WLAN client also occurs after this delay time. If no 5-GHz WLAN clients are present in the network, the delay time should be set to 0 seconds.
On the WLC you activate client steering for an AP under using the selection list Client steering. Refer to section Client steering by WLC for further information on this.