I have a strange issue when provisioning a Slave Configuration using CapsMan on a hAP ax3. The Master config works without issues but whatever slave configuration I add I always have the same symptom. The device sucessfully connects and disconnects within seconds. The only logs available are the ones attached. Has anyone by any chance encountered this issue and solved it ?

Hello!
I’ve the same issue but not only on ax3. I’m using 2 capAX, 1 ax2 and 1 ax3 with capsman.
If only one SSID is activated on 2.4ghz interfaces, everything is okay, all client (~40) are connected and they have stable connection.
If the second SSID is also activated (master + slave cfg), clients keep disconnecting from both network. In this case I’ve the same log entries like ssaliba.
Working Capsman cfg (only one 2.4 SSID):
/interface wifi channel
add band=2ghz-ax disabled=no name=channel-2ghz skip-dfs-channels=10min-cac width=20mhz
add band=5ghz-ax disabled=no name=channel-5ghz skip-dfs-channels=10min-cac width=20/40mhz
/interface wifi datapath
add bridge=bridge1 disabled=no name=datapath-intra vlan-id=10
add bridge=bridge1 disabled=no name=datapath-restricted vlan-id=20
add bridge=bridge1 disabled=no name=datapath-guest vlan-id=30
/interface wifi security
add authentication-types=wpa2-psk,wpa3-psk connect-priority=0/1 disabled=no ft=yes ft-over-ds=yes name=sec-intra wps=disable
add authentication-types=wpa2-psk connect-priority=0/1 disabled=no ft=no ft-over-ds=no name=sec-restricted wps=disable
add authentication-types=wpa2-psk,wpa3-psk connect-priority=0/1 disabled=no ft=yes ft-over-ds=yes name=sec-guest wps=disable
/interface wifi configuration
add channel=channel-5ghz country=Hungary disabled=no mode=ap name=cfg-intra-5ghz security=sec-intra ssid=Intra
add channel=channel-2ghz country=Hungary disabled=no mode=ap name=cfg-intra-2.4ghz security=sec-intra ssid=Intra
add channel=channel-2ghz country=Hungary disabled=no mode=ap name=cfg-restricted-2.4ghz security=sec-restricted security.ft=no .ft-over-ds=no ssid=\
Restricted steering.rrm=no .wnm=no
add channel=channel-2ghz country=Hungary disabled=no mode=ap name=cfg-guest-2.4ghz security=sec-guest security.ft=no .ft-over-ds=no ssid=Guest
add channel=channel-5ghz country=Hungary disabled=no mode=ap name=cfg-guest-5ghz security=sec-guest security.ft=no .ft-over-ds=no ssid=Guest
/interface wifi capsman
set enabled=yes package-path=/ require-peer-certificate=no upgrade-policy=suggest-same-version
/interface wifi provisioning
add action=create-dynamic-enabled disabled=no master-configuration=cfg-restricted-2.4ghz supported-bands=2ghz-ax
add action=create-dynamic-enabled disabled=no master-configuration=cfg-intra-5ghz supported-bands=5ghz-ac
NON-working Capsman cfg (two SSID on 2.4)
/interface wifi provisioning
add action=create-dynamic-enabled disabled=no master-configuration=cfg-restricted-2.4ghz slave-configurations=cfg-intra-2.4ghz supported-bands=2ghz-ax
add action=create-dynamic-enabled disabled=no master-configuration=cfg-intra-5ghz supported-bands=5ghz-ac
I played with Steering, Connect priority, Channel band, Channel width without success.
I seem to have resolved the issue. Unlike the legacy CAPSMAN which allows the selection of a bridge to which interfaces should be added when local forwarding mode is used, the new CAPSMAN only supports local forwarding but does now allow for the specification of such bridge.
I added the slave wifi interface manually to the bridge and voila no more disconnections. Of course the disconnections were not WiFi related but due to the device not obtaining an IP address.
Ideally I would like someone from Mikrotik to confirm my reasoning.
You can use slaves-datapath in cap settings to set the bridge for slaves. If it’s unset, slaves will inherit the bridge from master interface’s “datapath.bridge” setting on the cap since ROS 7.13.
Thanks for the tip. Using the slaves-datapath did the trick too and it was automatic without manual intervention
Do you use different bridge or VLAN for each SSID?
I’ve 1 bridge and 1 VLAN (for now). First I would like to have only 2 SSID without VLANs, I would set VLANs later.
I tried to set datapath.bridge=bridge1 for master and slave config, but client keeps disassociated/disconnecting.
What am I messing up?

My problem is solved:
I had to set it up the wifi interface>datapath>bridge option at CAP side.
What is the datapath bridge setting for at CAPsMAN side?