Unraid server freezes when enabling bridge with VLANs on LACP bond

I’m running an Unraid server on the latest stable release.

Network setup:

• 4 physical NICs bonded using LACP (802.3ad)

• Bond connected to a switch port-channel (LACP, VLAN trunk)

• Single Linux bridge (br0) on top of the bond

• 5 VLANs configured on the bridge

• Multiple Docker containers on different VLAN subnets

• Containers work normally before enabling bridge + VLANs

Problem:
After enabling bridging with VLANs on the bonded interface, the system starts to hang after ~30 seconds:

• Docker container consoles freeze

• Unraid Web UI becomes unresponsive

• Local Unraid console (keyboard/monitor) also freezes

• System requires a hard reboot to recover

Important note:

• If I disable the bridge and VLANs, the system is completely stable

• The hang is consistent and happens roughly 30 seconds after enabling the bridge

• No obvious error messages are logged before the freeze

Network configuration (from network.cfg)

# Generated settings:
IFNAME[0]="br0"
BONDNAME[0]="bond0"
BONDING_MIIMON[0]="100"
BONDING_MODE[0]="4"
BONDNICS[0]="eth0 eth1 eth2 eth3 eth4"

BRNAME[0]="br0"
BRNICS[0]="bond0"
BRSTP[0]="no"
BRFD[0]="0"

PROTOCOL[0]="ipv4"
USE_DHCP[0]="no"
IPADDR[0]="10.30.20.254"
NETMASK[0]="255.255.255.0"
GATEWAY[0]="10.30.20.1"
METRIC[0]="14"

DNS_SERVER1="10.30.20.1"
DHCP_KEEPRESOLV="yes"
USE_DHCP6[0]="yes"
DHCP6_KEEPRESOLV="no"

# VLANs on br0
DESCRIPTION[0,1]="agr_lan_client"
VLANID[0,1]="30"
IPADDR[0,1]="10.30.30.254"

DESCRIPTION[0,2]="agr_lan_iot"
VLANID[0,2]="72"
IPADDR[0,2]="10.30.72.254"

DESCRIPTION[0,3]="agr_lan_mgmt"
VLANID[0,3]="100"
IPADDR[0,3]="10.30.100.254"

DESCRIPTION[0,4]="agr_lan_wifi_mgmt"
VLANID[0,4]="200"
IPADDR[0,4]="10.30.200.254"

DESCRIPTION[0,5]="agr_lan_wifi_client"
VLANID[0,5]="201"
IPADDR[0,5]="10.30.201.254"

VLANS[0]="6"
SYSNICS="1"

Question:
Has anyone seen Unraid lock up when using LACP + bridge + multiple VLANs together?

Is this a known limitation or bug with:

• Linux bridging over bonded interfaces

• Docker macvlan/ipvlan interaction

• STP disabled on the bridge

• Multiple IPs assigned to bridge VLAN interfaces

Any guidance on what to test or change (STP on/off, ipvlan vs macvlan, MTU, removing IPs from VLAN interfaces, etc.) would be appreciated.


I did request some assistance from unraid support but did not have a win.