Comment 9 for bug 2030673

I went back and looked at my apt install logs alongside my network crash logs. I'm pretty sure I was able to pinpoint the version that started it all.

I had no crashes with kernel 6.2.0-24.24 or anything prior.

Once I upped to 6.2.0-25.25, that's when things started breaking.

Lo and behold, there's a bunch of r8169 stuff in that version's changelog:
http://changelogs.ubuntu.com/changelogs/pool/main/l/linux/linux_6.2.0-25.25/changelog

  * Fix only reach PC3 when ethernet is plugged r8169 (LP: #1946433)
    - r8169: use spinlock to protect mac ocp register access
    - r8169: use spinlock to protect access to registers Config2 and Config5
    - r8169: enable cfg9346 config register access in atomic context
    - r8169: prepare rtl_hw_aspm_clkreq_enable for usage in atomic context
    - r8169: disable ASPM during NAPI poll
    - r8169: remove ASPM restrictions now that ASPM is disabled during NAPI poll

That log references this bug https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.14/+bug/1946433

I don't really understand what's going on there, but at least we have a possible suspect.