VMG1312-B10D seemed to lose its config, such that CHAP authentication failed for the WAN.

tonygibbs16

Hello,

MY VMG1312-B10D with firmware V5.13(AAXA.10)C0 has been working well.

I needed to turn it off for 7 days. When I came to turn it back, it would not connect the PPPoE connection over VDSL, as it reported a CHAP authentication failure. See syslog extracts below.

     - VDSL came up fully though.

21/05/2021 18:28:52	192.168.1.1	May 21 18:28:53 daemon.notice pppd: Connection terminated.		00-00 00:00:00	0		0
21/05/2021 18:28:52	192.168.1.1	May 21 18:28:52 daemon.info pppd: CHAP authentication failed: Request Denied		00-00 00:00:00	0		0
21/05/2021 18:28:52	192.168.1.1	May 21 18:28:52 daemon.notice pppd: Connect: ppp2.3 <--> ptm0.3		00-00 00:00:00	0		0
21/05/2021 18:28:51	192.168.1.1	May 21 18:28:52 daemon.info pppd: Using interface ppp2.3		00-00 00:00:00	0		0

21/05/2021 18:28:51	192.168.1.1	May 21 18:28:52 daemon.info pppd: PPP session is 7074		00-00 00:00:00	0		0
21/05/2021 18:28:22	192.168.1.1	May 21 18:28:22 daemon.info pppd: Sent PADT		00-00 00:00:00	0		0
21/05/2021 18:28:21	192.168.1.1	May 21 18:28:22 daemon.notice pppd: Connection terminated.		00-00 00:00:00	0		0
21/05/2021 18:28:21	192.168.1.1	May 21 18:28:22 daemon.info pppd: CHAP authentication failed: Request Denied		00-00 00:00:00	0		0
21/05/2021 18:28:21	192.168.1.1	May 21 18:28:22 daemon.notice pppd: Connect: ppp2.3 <--> ptm0.3		00-00 00:00:00	0		0
21/05/2021 18:28:21	192.168.1.1	May 21 18:28:22 daemon.info pppd: Using interface ppp2.3		00-00 00:00:00	0		0

I had a backup of the configuration. So I restored that into the router and the WAN PPPoE connection came up fully.

I am back up and working, but is this a known issue?

Kind regards,

      Tony

SEJ

Not very sure what happened while you turn off the router.
If it happened again, you can backup the configuration file while the PPPoE fail.
Possibly can find something difference between the fail and work configuration files.

tonygibbs16

Hello @SEJ

Thanks for your reply. I don't know what happened either.
       - I do not know if the configuration is in battery-backed NVRAM and that I have a dying battery or not.

I had a configuration backup from December 2020, which I restored, and everything started working again.

Yes. I could have looked for differences in the failed config and working config, but I just wanted it up and working.

Kind regards,
     Tony