Hello. Thank you for the reply.
And now i can connect my phone to dlink and dlink1 networks without disconnections. At this time strongest AP ruckus broadcasting at 6 channel, same as dlink.
Also i start sniffing in 6 channel. I not understand, I assumed that I would see a large number of deassoc frames... But maximum 1 frame per second and i think that this packet not related to AP "dlink" suppression.