Hi everyone,

my Unraid server becomes unresponsive after running for several hours or days.
I can still ping the server (both locally and via Tailscale), but I can't access the Unraid WebUI or any Docker WebUIs.
Only a manual reboot restores functionality.

I downloaded the diagnostics and attached them to this post.

If anyone could take a look, I'd really appreciate it – maybe someone can spot what’s going wrong.
Thanks a lot in advance!

4s-diagnostics-20250427-1846.zip

Per your daig. Please install the plugin unraid patch and upgrade to the latest stable v7.01 release there have been some updates...
Still reviewing your diag file.

I'm seeing OOM... this tells me that your tryign to run and do to much on this mahcine...

looks like your VM ate your unraid systems memory

Quote

kernel: Out of memory: Killed process 12345 (processname) total-vm:...
 

This happens when your system runs out of RAM + swap space → kernel forcibly kills running processes to survive.

🔴 This explains why WebUI (nginx/php-fpm), Docker, and containers become unresponsive:
Killed processes can include core Unraid services like Docker engine, nginx, or anything running inside RAM.

and then docker dies to to lack of resources...

Quote

docker0: link is not ready
 

Some errors indicating Docker was failing to allocate memory for container workloads.

Docker networking and DNS resolution inside containers (Tailscale interaction) show timeout events.

 

 

 

Tailscale and DNS Issues

There are many network stack messages about Tailscale devices, and virtual adapters sometimes becoming inactive temporarily.

Could be affecting WebUI reverse proxy / container DNS resolution when Docker is trying to access the bridge.

(can be fixed at each docker level adding

--dns 100.100.100.100 --dns 8.8.8.8

in the extra paramerter field...

 

you need more ram for your system. you need to resource limit services.