Increase in PPPoE Downtime/Reconnects, IP Changes

[lunch]

Hi everyone,


I have searched as widely as I can on this topic and either hit dead ends or else get bits and pieces of info that don't feel conclusive in any way or include things I've already implemented.

I've been running opnsense on bare metal for the past ~2 years, all the while using PPPoE for WAN. PPPoE was set up according to the documentation. Up to this point things have been smooth, with connections being pretty stable. But I've noticed that within the past month or so my logs have seen a pretty big increase in down events. Went from about one every month or so to 10+ in September and October.

This morning PPPoE went down about 6 times in 3 hours, with some events less than 10 minutes apart. The logs show a change/remapping of IP, which is something I've never really noticed before and wondering if perhaps that's a cause for this? It seems to happen with each down event.

I'm wondering what steps I can take to troubleshoot and hopefully remedy this.

Build info:

ISP is Bell Canada fibre, using their Giga Hub (HH4000)

25.7.6

i7-4770 CPU

Intel X520 DA2

Examples of what my logs look like when this happens are below, if it's any help. Let me know if I can provide more info.

Code Select Expand

2025-11-06T11:20:23-05:00 Notice opnsense 9407 /usr/local/etc/rc.newwanip: IP address change detected, killing states for XXX.XXX.XX.X25
2025-11-06T09:23:33-05:00 Notice opnsense 28339 /usr/local/etc/rc.newwanip: ROUTING: treating 'XXX.XXX.XX.X02' as far gateway for 'XXX.XXX.XX.X25/32'
2025-11-06T06:40:58-05:00 Notice opnsense 63375 /usr/local/etc/rc.newwanip: ROUTING: treating 'XXX.XXX.XX.X02' as far gateway for 'XX.XX.XX.X22/32'
2025-11-06T06:28:20-05:00 Notice opnsense 45800 /usr/local/etc/rc.newwanip: ROUTING: treating 'XXX.XXX.XX.X02' as far gateway for 'XX.XX.XX.XX2/32'
2025-11-06T06:16:59-05:00 Notice opnsense 24119 /usr/local/etc/rc.newwanip: ROUTING: treating 'XXX.XXX.XX.X02' as far gateway for 'XXX.XXX.XX.X25/32'
2025-11-06T06:10:40-05:00 Notice opnsense 49967 /usr/local/etc/rc.newwanip: ROUTING: treating 'XXX.XXX.XX.X02' as far gateway for 'XXX.XXX.XXX.X24/32'
2025-11-06T05:17:39-05:00 Notice opnsense 12994 /usr/local/etc/rc.newwanip: ROUTING: treating 'XXX.XXX.XX.X02' as far gateway for 'XXX.XXX.XXX.X24/32'
             

2025-11-04T09:44:22-05:00 Notice ppp 7068 [wan] error writing len 12 frame to b0: Network is down
2025-11-04T10:11:02-05:00 Notice ppp 7068 [wan_link0] Link: DOWN event