NV2 Timing related disconnects

Info about NV2

Problems with wireless I describe here.

I wanted to use NV2, but unfortunately the clients are often disconnected with the following message CONTROL FRAME TIMEOUT. Disconnecting lasted several minutes. At 802.11, or NST runs fine.
The signals are so good, I think, when running standard 802.11.

http://forum.mikrotik.com/t/station-bridge-abnormal-traffic-and-nv2-ctrl-frame-timeout/47276/1