Hosting DHCP on TrueNAS with AdGuard Home unstable

Apps and Virtualization
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As indicated in this post I have a setup which I’m trying to get right for remote access of Truenas hosted Nextcloud.

As a part of it I let AdGuardHome (installed on Truenas) run the DHCP. In the past week however for seemingly no good reason (I wasnt even doing anything with the NAS) all apps stopped working, causing the network to completely freeze. No device was accessible, not via wifi nor wired. Even connecting a laptop to the modem/router via wired connection gave me nothing.

Only after a complete factory reset of the modem/router (causing it to regain DHCP function) I could login into truenas again, and the only way I could enable the apps (including AdGuard) was by unsetting the apps pool, and reselecting the same pool again.

Is this behaviour recognized by someone else? is there a sturdier way of running a DHCP server (or the apps in general)?

As mentioned n the other post, a PCIe card with M.2 expansion slot (and SSD) are coming my way so I can move the apps to a dedicated SSD pool. Might that do the trick?

2

Sound like the Realtek nic issue. Have you tried using an intel nic ?

1 Like
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Do you mean to install an expansion card with network connections? The current LAN connection (Realtek RTL8111H Gigabit Ethernet controller) is integrated with the motherboard.

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Sure! If you search the forum a lot users have issues with Realtek NIC and have switch to an intel NIC

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Hmmm… would be a pity. Being an ITX board the expansion options are limited. I just ordered a PCIe card with M.2 slot to add another SSD so i can move the apps away from HDD. As far as I know I don’t have any other means of expanding the connections.

If I truly want both, I might need to sacrifice 1 of 4 HDD slots, and replace that one with a SATA SSD for the apps. That would be an escape I guess. That, or another board…

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Such basic infrastructure services are best run on a dedicated cheap machine, so as to not get interrupted by NAS updates/upgrades or failures. A server-grade NIC is a must for reliability—and this class begins with the i210 before moving on to the i350 and then the 10 Gb/s families.
A Realtek NIC migh cut it… if it is a Raspeberry PI or similar, or a Thin Client which runs exclusively AdGuard/Pi-Hole.

Alternatively, it might be a hardware issue. Over-heating? Bad RAM?

MIni-ITX? From your signature it looks like B550M would be a micro-ATX board.

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The board is marketed as Mini-ITX, and fits in a Jonsbo N1 housing.

But I have a couple of RaspberryPies lying around doing nothing, one of them had PiHole running in the last. Might have to review them.

The dedicated hardware is something I’ll look into, but is likely overkill for me.

8

True, but that’s not the cause for an entire network down!

I have had PLENTY of Realtek equipped servers that worked FINE! (Sure, max speed 960 MB instead of 980 MB, who cares).

Ensure you disable Hardware Offloading, but from your description, you dont have much experience/knowledge so next time do give us BETTER details!

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Is the motherboard model B550M-ITX/ac

1 Like
10

That’s the one indeed.

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I agree with you that better details would be helpful, but I noticed the network outage when I was ready to go to bed (and resolved it with a sleepy head) and forgot to take screenshots. I’m learning on the fly, currently reading about systemlogs etc.

In the meantime I have found a few similar topics:

And a potential cause:
https://ixsystems.atlassian.net/browse/NAS-133437