Rostelecom multiservice (vlan) settings

RouterOS Beginner Basics
1

All the good days!
My Internet provider Rostelecom, connect the router (Iskratel E39) to provide interactive television services. Their router is working. His L2 settings (vlans and bridges), attached to the topic. 423 Vlan for pppoe client connections. I can not configure my mikrotik routerboard 750gl.
I’ve tried /interface vlan add interface=ether5-gateway name=vlan_pppoe vlan-id=423 But pppoe clinet does not connect and the utility to scan the pppoe does not show the MAC address.
Also i try /interface ethernet switch set ether1-gateway vlan-mode=secure vlan-header=leave-as-is vlan-id=423
And it does not work too.
I think may be i need to setup PVID setting, but i dont found it.
Help me please!

Iskratel E39 config
bridges.png
vlans.png
my 750gl config

# jan/02/1970 00:12:29 by RouterOS 6.32.3
# software id = 95JZ-QS87
#
/interface ethernet
set [ find default-name=ether1 ] master-port=ether2-master-local name=\
    ether1-slave-local
set [ find default-name=ether2 ] name=ether2-master-local
set [ find default-name=ether3 ] master-port=ether2-master-local name=\
    ether3-slave-local
set [ find default-name=ether4 ] master-port=ether2-master-local name=\
    ether4-slave-local
set [ find default-name=ether5 ] mac-address=xxxxxxxxxxxxxxx master-port=\
    ether2-master-local name=ether5-gateway
/interface vlan
add interface=ether5-gateway l2mtu=1594 name=vlan5_423 vlan-id=423
/interface pppoe-client
add add-default-route=yes interface=vlan5_423 max-mru=1480 max-mtu=1480 mrru=\
    1600 name=pppoe-out1 password=xxxxxxxxxxxxxxx use-peer-dns=yes user=\
    777xxxxxxxxxxx
/ip neighbor discovery
set ether1-slave-local discover=no
/ip pool
add name=default-dhcp ranges=192.168.88.10-192.168.88.254
/ip address
add address=192.168.1.2/24 interface=ether2-master-local network=192.168.1.0
/ip dns
set allow-remote-requests=yes

1.png

2

No one knows how to solve the problem? Maybe just a piece of advice?

3

Have you tried removing ether5-gateway from the switch group by setting the [master-port] variable to [none]? I just tested that part of your config on my own setup and I couldn’t get a PPPoE connection while my gateway port was part of the switch group.

4

Thank you for answer! I try this config too, but it does not work.
2.png

5

Are you sure that the modem is sending you tagged traffic? In the screenshots I noticed that you have a PPPoE vlan. Under [Tagged Ports] I can only see [wan] and [Untagged Ports] seems to be empty. It seems no other ports are part of that vlan. Would it not be an idea to either add an Ethernet port to the [Tagged Ports] section or remove the VLAN on the Mikrotik and add one of the Ethernet ports to the [Untagged Ports] section.

On the Mikrotik side things seem to be setup correctly (the config matches your description of the desired config). I think you should look for issues in the config of your modem. I’m afraid I can’t be of much assistance though as I do not know how the modem works and I can’t find a lot of info online.