I am on 21.02.3 and recently have been running into an issue where my laptop (thunderbolt Ethernet connection) and phone (Wi-Fi connection) loose internet access, however, my work laptop (wired Ethernet connection) does not loose internet.
What should I look at to troubleshoot why some devices would loose internet while others are not affected at all?
What additional information can I provide to troubleshoot this further?
Check router dmesg/system log, run a constant ping on the failing host(s), one for the router LAN IP, another for 8.8.8.8.
Could also loop a nslookup for some public site, to rule out any dns issues.
Looks like the issue is due to the router is running out of memory:
Wed Sep 14 05:03:40 2022 kern.err kernel: [14768.842809] Out of memory: Killed process 6205 (dnsmasq) total-vm:25408kB, anon-rss:24100kB, file-rss:4kB, shmem-rss:4kB, UID:453 pgtables:44kB oom_score_adj:0
Wed Sep 14 05:03:40 2022 kern.info kernel: [14768.886784] oom_reaper: reaped process 6205 (dnsmasq), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
I updated to 22.03 and have trimmed back on the number of add on packages installed to hopefully avoid low memory issues.
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