Dear user,
Please remove the bridge type WAN interface and set the default VLAN for the eth port.
In this case, just setting the ONT port native VLAN is enough.
For example:
huawei(config-if-gpon-0/1)#ont port native-vlan
{ portid<U><0,3> }:1
{ ontid<U><0,63> }:1
{ eth<K>|iphost<K>|moca<K>|vdsl<K>|wifi<K> }:eth
{ ont-portid<U><1,24> }:1
{ priority<K>|vlan<K> }:vlan
{ vlanid<U><0,4095> }:102
{ <cr>|priority<K> }:
Command:
ont port native-vlan 1 1 eth 1 vlan 102