Hello, I did some mainteance a short while ago on my NAS, and since then I have frequent issues where the server is not reachable anymore from the outside (so neither from the internet via Cloudflare Tunnel, nor from other local devices on the same network). It usually fixes itself after a while, it's a bit random. I'm pretty sure it is a network/DNS problem, because disconnecting and re-connecting the LAN cable on the physical server immediately fixes it.

My problem is, I did quite a few things during said mainteance (not making that mistake again!) so I have a hard time narrowing it down where the issue lies:

• I installed a new HDD and switched over my parity disk (aka rebuilt parity on the new HDD and setup the old one as a normal drive)

• I updated Unraid from 7.0.0 to 7.1.4

• I installed Fan Auto Control and uninstalled it again after testing it out

• I set Power Mode to "Best power efficiency" and set it back to "Best performance" after discovering the issues

• Updated plugins and docker containers, altough I do that frequently so I doubt thats where the issue comes from

Attached is my diagnostics dump, roughly 5 hours after a reboot and directly after experiencing the issues again.

Thanks a lot in advance!

unraid-diagnostics-20250806-1440.zip

Have you tried turning off bonding?

On 8/6/2025 at 6:00 PM, Michael_P said:

Have you tried turning off bonding?

Turned it off and so far no disconnects, thanks! Will mark as solve and re-open if needed.

However, why is this happening now? Is this something that got introduced in an update between 7.0.0 and 7.1.4?

Edited August 9, 2025Aug 9 by atlatonin

2 minutes ago, atlatonin said:

However, why is this happening now? Is this something that got introduced in an update between 7.0.0 and 7.1.4?

Can't answer that, but they did make networking changes that went haywire for some folks that 7.1.4 seemed to fix

On 8/9/2025 at 11:32 AM, Michael_P said:

Can't answer that, but they did make networking changes that went haywire for some folks that 7.1.4 seemed to fix

Alright, appreciate the context. I unfortunately gotta re-open this topic, issue appeared today again.

12 hours ago, atlatonin said:

Alright, appreciate the context. I unfortunately gotta re-open this topic, issue appeared today again.

Post a new diagnostics to see if it's still flapping

You can also try deleting the network config from the flash drive to reset it and start from fresh (/config/network.cfg)

9 hours ago, Michael_P said:

Post a new diagnostics to see if it's still flapping

You can also try deleting the network config from the flash drive to reset it and start from fresh (/config/network.cfg)

Attached new diagnostics - this is after the issue occurred and after I deleted the network config and rebooted (so bonding is enabled again as far as I can tell, I can try disabling it again)

unraid-diagnostics-20250812-2119.zip

Aug 12 20:15:41 Mausflix kernel: r8169 0000:02:00.0 eth0: Link is Down

Aug 12 20:15:41 Mausflix kernel: bond0: (slave eth0): link status definitely down, disabling slave

NIC lost the link, or was this you pulling the cable?

22 hours ago, JorgeB said:

Aug 12 20:15:41 Mausflix kernel: r8169 0000:02:00.0 eth0: Link is Down

Aug 12 20:15:41 Mausflix kernel: bond0: (slave eth0): link status definitely down, disabling slave

NIC lost the link, or was this you pulling the cable?

Yep pulled the cable out and put it back in around that time

Don't see anything else relevant logged; could be an external issue, but you can also try restoring the flash drive to mostly defaults to rule out a config problem:

backup the current one first and then recreate it using the USB tool and just restore the bare minimum, like the key, super.dat and the pools folder for the assignments, also copy the docker user templates folder (\config\plugins\dockerMan\templates-user), if all works you can then reconfigure the server or try restoring a few config files at a time from the backup to see if you can find the culprit.

On 8/14/2025 at 8:54 AM, JorgeB said:

Don't see anything else relevant logged; could be an external issue, but you can also try restoring the flash drive to mostly defaults to rule out a config problem:

backup the current one first and then recreate it using the USB tool and just restore the bare minimum, like the key, super.dat and the pools folder for the assignments, also copy the docker user templates folder (\config\plugins\dockerMan\templates-user), if all works you can then reconfigure the server or try restoring a few config files at a time from the backup to see if you can find the culprit.

I have reverted to 7.0.0 and so far no issues