Why can't I set a channel?

[dreamlayers]

I tried several different channels, and so far, I've only been able to use channel 6 or auto. With other channels, "wl status" tells me the channel is 1 and bandwidth is 20 MHz even though I selected 40 MHz. With such a setup, my laptop doesn't always show a network, and I cannot connect. When my laptop does show the network, it is on channel 1.

I've even tried resetting all settings to factory default, and I still couldn't change channels. I've tried both Oleg's firmware 1.9.2.7-10 and the new WL500W-1.9.2.7-d-r1087.trx.

I used to use channel 1 with 1.9.2.7-10 and it worked fine for a while. Then one day I couldn't connect and these problems started.