802.1b device not able to connect when using 2 GHz BGN mode

Hello all,

I have discovered problem connecting 802.1B to MikroTik AP when using 2GHz-B/G/N mode. The 802.1B device did not even scan the SSID and is not able to connect. When I change the AP to B/G mode with the same setting, everything is work.

Have anybody seen that?

running RB600 and RB493 with AR922X (latest R52Nm) cards and ROs 5.8 and 5.11. Both the same result.

Thank you
Dan