Unable to get channel-bonding for 802.11n on 2.4Ghz on 61e

Hi experts,

I'm unable to activate channel-bonding on 802.11n on 2.4Ghz on 61e. Even with "set channel-bonding enable" in "config wireless-controller wtp-profile" in "config radio-1", inSSIDer is showing a single channel.

Is it not possible to obtain 40Mhz (like I can on my Netgear AP)?

R's, Alex