MT-6000 PPPOE connection fails

Technical Support for Routers
1

We are behind a FTTH 200 mbit conntection, using PPOE. After rebooting the router and the fibre modem, somehow, the router tried and tried to establish the PPPOE connection and fails again and again. This is what I see in the logs:

2024-08-31T10:25:44+01:00 GL-MT6000 kmwan: config json str={ "op": 3, "data": { "cells": [ "wan" ] } }
2024-08-31T10:25:44+01:00 GL-MT6000 ddns-scripts[8865]: ddns: PID '8865' started at 2024-08-31 10:25
2024-08-31T10:25:44+01:00 GL-MT6000 ddns-scripts[8865]: ddns: Service section disabled! - TERMINATE
2024-08-31T10:25:44+01:00 GL-MT6000 ddns-scripts[8868]: glddns: PID '8868' started at 2024-08-31 10:25
2024-08-31T10:25:44+01:00 GL-MT6000 ddns-scripts[8865]: ddns: PID '8865' exit WITH ERROR '1' at 2024-08-31 10:25
2024-08-31T10:25:44+01:00 GL-MT6000 ddns-scripts[8868]: glddns: NO valid IP found
2024-08-31T10:25:46+01:00 GL-MT6000 kernel: [ 1014.030724] mtk_soc_eth 15100000.ethernet **eth1: Link is Up - 1Gbps/Full - flow control off**
2024-08-31T10:25:46+01:00 GL-MT6000 kernel: [ 1014.039005] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
2024-08-31T10:25:46+01:00 GL-MT6000 netifd: Network device 'eth1' link is up
2024-08-31T10:25:46+01:00 GL-MT6000 netifd: VLAN 'eth1.7' link is up
2024-08-31T10:25:46+01:00 GL-MT6000 netifd: Interface 'wan' has link connectivity
2024-08-31T10:25:46+01:00 GL-MT6000 netifd: Interface 'wan' is setting up now
2024-08-31T10:25:47+01:00 GL-MT6000 avahi-daemon[4334]: Joining mDNS multicast group on interface eth1.IPv6 with address fe80::9c98:78ff:fee5:4e7a.
2024-08-31T10:25:47+01:00 GL-MT6000 avahi-daemon[4334]: New relevant interface eth1.IPv6 for mDNS.
2024-08-31T10:25:47+01:00 GL-MT6000 avahi-daemon[4334]: Registering new address record for *::*:* on eth1.*.
2024-08-31T10:25:48+01:00 GL-MT6000 ddns-scripts[8868]: glddns: cURL Error: '6'
2024-08-31T10:25:48+01:00 GL-MT6000 ddns-scripts[8868]: glddns: Transfer failed - retry 1/0 in 60 seconds
2024-08-31T10:25:49+01:00 GL-MT6000 **root: mtk-sdk eth halted detected, now reset it...**
2024-08-31T10:25:49+01:00 GL-MT6000 kernel: [ 1017.692883] mtk_soc_eth 15100000.ethernet **eth1: Link is Down**
2024-08-31T10:25:49+01:00 GL-MT6000 avahi-daemon[4334]: Interface eth1.IPv6 no longer relevant for mDNS.

I see this repeating itself over and over. The only way so far I have found to make the connection from being dropped is going into the Internet settings and clicking "save". Before that, I had an Archer C7 router with OpenWRT which never showed any such behaviour. Is this a hardware/driver issue? If so, why does the step I described above solve it?

2

What firmware version are you using?

Did you try the 4.6.3-op24-ReleaseCandidate?
https://dl.gl-inet.com/router/mt6000/

3

Does it work on the other wan port?

Also this is weird:

What happen if you replug the cable does it crash?

4

What firmware version are you using?

The current stable version. OpenWrt 21.02-SNAPSHOT r15812+1075-46b6ee7ffc / LuCI openwrt-21.02 branch git-22.335.71649-0ecaf74

Did you try the 4.6.3-op24-ReleaseCandidate?

No. How stable is it?

5

No. Even worse as the workaround doesn't work either. I also tried /etc/init.d/network restart, but that doesn't help either.

I get the same error. Until I apply that workaround, that is, that is until I go to Ethernet 1/Modify and then click "apply" (without actually changing anything).