Network has stopped working - no changes made in months? Flummoxed.

Ahoy! My unRAID has just started losing all network connectivity and I cannot for the life of me figure out why. It's been working fine for 6+ months with no issue. Heck, I even installed a pfSense router on an IntelNUC about a month ago and thought surely I would have dorked something up. But, no, worked flawlessly.

All of a sudden today, I started noticing that qbittorrent stopped working. Curious I entered the console and 'curl ifconfig.io' only to receive nothing. Hmmm. Let me check nordlynx (CA). 'curl ifconfig.io' and nothing. Okay, fine, maybe it's these docker containers. Let me reset them. That didn't work.

So I opened up a unRaid console window within unRAID and 'ping google.com' -- nada. That seems weird. So I reboot the server. This fixes everything for maybe 10 minutes.

root@server_name:~# ping google.com
ping: google.com: Name or service not known
root@server_name:~# 

I tried everything above again and nada. Then I ssh into the server and ping Google, Yahoo and 1.1.1.1 and everything looks normal. But console within unRAID (html window) nada. I'm thoroughly confused. Plex seems to be working (locally) as far as I can tell.

ping yahoo.com
PING yahoo.com (74.6.231.21) 56(84) bytes of data.
64 bytes from media-router-fp74.prod.media.vip.ne1.yahoo.com (74.6.231.21): icmp_seq=1 ttl=46 time=27.1 ms
^C
64 bytes from 74.6.231.21: icmp_seq=2 ttl=46 time=29.6 ms
--- yahoo.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 27.054/28.347/29.641/1.293 ms
root@darkstar:~# ping google.com
PING google.com (142.250.191.110) 56(84) bytes of data.
64 bytes from ord38s28-in-f14.1e100.net (142.250.191.110): icmp_seq=1 ttl=53 time=10.1 ms
64 bytes from ord38s28-in-f14.1e100.net (142.250.191.110): icmp_seq=2 ttl=53 time=11.9 ms
^
C64 bytes from 142.250.191.110: icmp_seq=3 ttl=53 time=9.77 ms
--- google.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2005ms
rtt min/avg/max/mdev = 9.768/10.610/11.913/0.934 ms
root@darkstar:~# ping 1.1.1.1
PING 1.1.1.1 (1.1.1.1) 56(84) bytes of data.
64 bytes from 1.1.1.1: icmp_seq=1 ttl=52 time=14.2 ms
64 bytes from 1.1.1.1: icmp_seq=2 ttl=52 time=12.8 ms
64 bytes from 1.1.1.1: icmp_seq=3 ttl=52 time=16.6 ms
64 bytes from 1.1.1.1: icmp_seq=4 ttl=52 time=12.9 ms
64 bytes from 1.1.1.1: icmp_seq=5 ttl=52 time=13.5 ms
^C
--- 1.1.1.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4009ms
rtt min/avg/max/mdev = 12.791/13.980/16.569/1.387 ms

Any thoughts on what I can do to troubleshoot?

Edited September 1, 20232 yr by zachlovescoffee