AdGuard Home update installed and no longer able to check for updates

Started by hushcoden, April 18, 2026, 05:51:52 PM

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I've just updated to the latest AdGuard Home (v0.107.74), and unfortunately the small button to check for updates at the bottom of the main page next to the version number has disappeared, and as a result, I'm no longer able to check for updates.

Also, if I log out and log back in (or just refresh the home page), I get a red error message saying: "Update check failed. Please check your Internet connection." But I do have Internet connection and I'm still able to update the DNS blocklists.

I've already cleared cookies and browser cache (Brave and Firefox) and rebooted OPNsense, but with no success.

Has anyone experienced something similar?

I'm running OPNsense v26.1.6 and latest mimugmail plugin v1.16.

Tia.

I have been having the same issue and was driving me mad! However I have spent a little time looking into this tonight.

I have resolved it by temporarily changing my upstream DNS server to a well known public one, lets say 1.1.1.1 and applying the changes.

I have then been able to log out and back in again - the button appears confirming an update is available, allowing me to update Adguard to the latest version. Once updated I have then reverted to my original DNS server (in my case an unbound server on my local network).

Now when I log in, I no longer get the "Update check failed. Please check your Internet connection." error message and the update button is there in the footer.


Having said that, i have just clicked the check for update and now i am getting the same error again!

This is definitely an Adguard issue though and not OPNsense as I get the same issue on my Adguard VM.


See the below issue which appears to be linked:

https://github.com/AdguardTeam/AdGuardHome/issues/8342


As mentioned in the GitHub issue, the temporary workaround requires the following steps:

1) Go to AGH DNS, comment out any upstream servers. Add 127.0.0.1 for unbound

2) Go to Unbound Settings and disable DNSSEC if enabled

3) Go to Unbound Advanced and disable the NSEC and the two Harden... options

4) Set 1.1.1.1 as upstream for Unbound in the DNS over TLS section


Undo the steps above after updating AGH