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Drf
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Joined: Sat Jan 22, 2022 11:39 am

PPPoE disconnecting after first vdsl connection

Sat Jan 22, 2022 11:49 am

I have a strange issue where my mikrotik router 951G-2HnD will establish a PPPoE connection after VDSL comes on but drop it within 2-3 minutes never to reestablish.

My set up is a zyxel VDSL modem, set up in bridge mode to my MIkrotik router which acts as a router/firewall for my home network. The MT performs NAT for my internal network while at the same time routing a small physical adress subnet I have from my ISP on which I have an external facing mail server. This is the reason the PPPoE is terminated on the MT as opposed to just using the Zyxel.

When I switch the Zyxel to routing mode, everything works fine and the PPPoE terminated at the Zyxel stays up.

This setup has been working for me just fine for over 2 years so it's not (should not) be setup incorrectly. I also checked the PPPoE settings on the Zyxel are the same as on the MT.

Any ideas appreciated.

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