css610 vlan error

My requirement is single-line multiplexing
my system 2.14
PPPOE vlan is 2
iptv vlan is 3
port 1 is strict only tag, its role is trunk vlan2 and vlan3
port 2 is strict only untag vlan2
port 3 is strict only untag vlan3
I use Router or computer access port 2 can get pppoe ip after dialing, but cannot connect to the Internet. I am sure there is a problem with vlan, how can I solve it?

who can help me

If router can get IP address via PPPoE, then VLAN 2 on CSS is configured just fine.

Internet on router is another thing. If your router is Mikrotik as well and at (pretty much) default configuration, then interface pppoe-out1 has to be member of WAN interface list (or else NAT etc. won’t work).

css610 port2 is untag ,so Since it is untag, the asus router should not need any configuration, just like direct connection.