That is amazing.
I do not know where I am wrong. I am using 5Ghz only N.
Protocol I am using is 802.11 and I do not have superchannel enabled.
Can i see the HT settings which u have.
Here is something you can refer..
-interface> wlan1> wireless> check on the Frequency mode: SuperChannel
-interface> wlan1> wireless> check on the Wireless protocol: nv2
then try to use the channel 5400 and in the station-wds unit, scan list copy and paste this into the scan this..
I believe you problem will solve. or you can generate the Supout.rif file and email to me, i can assist you to look into this.