wireless advanced channels-2

I have manage to make this option work but I do have some questions:
1.it’s only working when I cancel in the station the SSID - only then it’s connect to the AP- why?
2.what do I need to set in

/interface wireless channels set extension-channel=
  1. also in one router I get this options:
[admin@3GRouter] > /interface wireless channels set numbers=0 extension-channel=              
above-control  below-control  disabled

and in the other one I have this :

/interface wireless channels set extension-channel=
Ce  Ceee  disabled  eC  eCee  eeCe  eeeC

how it’s possible?
both of them are V6.15 with the same RF card, the only different is the one is RB411 and the other is RB433

thanks ,

And what is the same RF card?

Atheros AR92xx

I do not see any model name on your relpy.

Is really too hard to explain all exactly with all detail?

At this point another questin: are RB411 and RB433 or RB411AH and RB433AH?

Is like one reply I read from another user to another topic: “You think we are thelepathist?”

How we can try duplicate the problem, if you not provide any of requred details?

O.K.
I thought it the same thing , sorry

 model: 433

and also

 model: 411U

the RF card is R52n-M

what else in needed?

Now we have all relevant detail.

Someone on the forum, or me tomorrow can try to duplicate the problem.