CnMatrix Ex2052 Switch

I dont know if anyone else face below issue or not.

I have configured Uplink port with Trunk with Native VLAN1 and assigned Static IP from VLAN870.
All Access Points are connected to Cambium switches with PBA configuration.
PBA configuration is Hybrid All VLANs with Native VLAN850. So all WAPs will get IP Address from VLAN850 assigned DHCP server IP Range.

Dont know, but some of WAPs are getting IP address from VLAN851 (Which is not even configured as NATIVE VLAN on any of downstream switchport.)

Also intermittently i can see 15-20 WAPs are going offline in Cambium cloud.

Similar issue i also noticed in AP ETH’s port.
AP Group has ETH port configuration is Access Port on VLAN820.
but i noticed that some of end users who are connected to WAP’s ETH2 interface, is getting IP Address from VLAN851.

Switches are running on 4.5 and I am not comfortable to upgrade firmware until i fix this issue permanently.