On 2.4G clients try to join the AP and the log shows only

15:57:28 wireless,debug wlan1: 60:AF:6D:46:88:61 attempts to associate
15:57:28 wireless,debug wlan1: 60:AF:6D:46:88:61 in local ACL, accept
15:57:28 wireless,info 60:AF:6D:46:88:61@wlan1: connected
15:57:28 wireless,info 60:AF:6D:46:88:61@wlan1: disconnected, received deauth: sending station leaving (8)
15:57:31 wireless,debug wlan1: 60:AF:6D:46:88:61 attempts to associate
15:57:31 wireless,debug wlan1: 60:AF:6D:46:88:61 in local ACL, accept
15:57:31 wireless,info 60:AF:6D:46:88:61@wlan1: connected
15:57:31 wireless,info 60:AF:6D:46:88:61@wlan1: disconnected, received deauth: sending station leaving (8)

was using hAP ac lite on latest version (6.45.3) and also latest bugfix (6.44.5) and corresponding firmware- still nothing.
When looking from the air sniffer it looks as MT is sending the deauth packets himself. On the same time while testing with some other random access points from other vendors - no issues so also nobody just hammering the deauth packets.

After playing a little bit this problem started to occur also on 5Ghz band but after reset 5G became stable again.

So any help or hints appreciated

here is many topics like this (viewtopic.php?f=7&t=85033 for example) without official answer =\

It's very common situation using 802.11 with 2.4Ghz. Until today, no solution for this.

Regards.

@MikroTik do you have any solution for this ? clients report that this even occurs with default config and all the other AP-s tested (ubi, tplink, cisco,meraki) work in the very same location and clients so very hard to blame it on something else- would need at least some hint which software version / firmware version works.

Please send us the supout.rif file right after the issue appears and the packet capture to support@mikrotik.com.

RB2011UAS-2HnD, just made reset + default conf. Issue remains.
Sending supout.rif to support@mikrotik.com now.