@pmarton: ADD: I am interested in what times of day these happen. Is it all the time, or limited to certain times of day? And what was the estimated traffic volume during the disconnects? My disconnects happened mostly in the evenings during heavy station uploads (transmissions). It's just a test l...

Logs (clocks not in sync): Cli: 22:53:41 wireless,info 00:0C:42:**:**:41@bg02 cli: lost connection, control frame timeout 22:53:46 wireless,debug bg02 cli: must select network 22:53:46 wireless,debug 00:0C:42:**:**:8A: on 5240 AP: yes SSID Ap******01 caps 0x421 rates 0xff00 basic 0x100 MT: yes (...)...

We see this problem with RouterOS v5.0rc11
This is just a test link (1 km) so i can try anything. I will post logs as i can.

please install RouterOS v4.17 or RouterOS v5.0rc11 as it has lot of fixes for Nv2 protocol that should increase the stability of the Nv2 protocol.

OK, then i don't make new thread.
Same problem here, waiting for some advice...