Samsung Galaxy won't update

Help
1

New to forum and PiHole in general.

New PiHole setup with Unbound. Using stock StevenBlack adlist and this one:
https://raw.githubusercontent.com/hagezi/dns-blocklists/main/adblock/pro.txt

Things have gone fairly well so far. But I'm running into an issue with my Samsung Galaxy S24+ devices. Neither one will connect to Galaxy Store updates, or the OS update check. "Unalbe to update the software. A network or server error occurred."

I've tried disabling each of the adlists. I've tried "Disable Blocking for 5 minutes". Still won't connect.

I don't see anything in the Query log section for my phone. Good or bad.

I've run the Tail PiHole.log. I come up with these entries. I've whitelisted that domain, but still no go.
Dec 23 08:23:05: query[A] dms.ospserver.net from 192.168.1.164
Dec 23 08:23:05: forwarded dms.ospserver.net to 127.0.0.1#5335
Dec 23 08:23:05: forwarded dms.ospserver.net to 127.0.0.1#5335
Dec 23 08:23:05: reply error is SERVFAIL

I changed my Guest WIFI over to use just Google DNS and the updates start working. But I don't know how to watch the traffic to see what it is connecting to that way.

Thank you

2

Thought I would add a quick update.

Switched from Unbound to Quad 9. That resolved the issue. Debating on just leaving it there. I don't have any good Linux skills. Not sure I can troubleshoot Unbound through commandline.

3

It would help if you supply some more details.
Like how are you running both: bare metal, in a VM or maybe in Docker?
What HW is it running on?
OS/distro details?
What guides/instructions did you follow?

4

I have a brand new Raspberry PI 5 I'm using. I installed the latest PI OS 64 bit Lite.

I used PiHole's instructions.

curl -sSL https://install.pi-hole.net | bash

https://docs.pi-hole.net/guides/dns/unbound

I've had no issues since switching away from UnBound. So I'm sure the issue is there. I'm probably going to leave it with the Quad 9 DNS servers instead though.