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For AdGH logging specifically there's another way. I can't really remember how long ago I did this modification but a few AdGH versions ago they introduced some additional logging capabilities by config. I update AdGH from time to time using the UI. The installation is from mimugmail's repo.
Please if you do it, check you have a version that has this capability and take notice of the schema changes. Make a backup of the config file: /usr/local/AdGuardHome/AdGuardHome.yaml before any changes.
I am on Version: v0.107.54 of AdGH.
On my config I have added/changed the following settings in the log section:

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log:
  enabled: true
  file: /var/log/AdGuardHome/AdGuardHome.log
  max_backups: 30
  max_size: 10
  max_age: 31
  compress: false
  local_time: false
  verbose: false
This is very recently, before I had:

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log:
  enabled: true
  file: /var/log/AdGuardHome/AdGuardHome.log
  max_backups: 3
  max_size: 100
  max_age: 3
  compress: false
  local_time: false
  verbose: false
but I realised I wanted to rotate earlier and not have 100 MB files. I have just recently made the change so will need to keep an eye on successful rotation.
So, take backup, make your desired changes, restart AdGH from : System: Diagnostics: Services. Read the new log file to see it starting. Keep an eye to make sure the log files are growing and rotating as expected.
More info on settings https://github.com/AdguardTeam/AdGuardHome/wiki/Configuration

Awesome, thank you! That should help a ton with troubleshooting. I've got it logging now and will monitor.

Out of curiosity, is there any way to log errors with plugins (such as from console)? If I could get a log of what is exploding in AGH, that would make this a lot easier.

Nothing to find in the /usr/local/AdGuardHome/data directory?

Also, log on to OPNsense via SSH, use drill to specifically throw a request at the AdGuard Home port, observe what happens.

I checked the AGH folder, including data, but all it has is the query log. I ran queries and only the query log changes. Nothing appears to be an "informational" log.

there seem to be a couple of hotfixes today for 24.7.10.x. I suggest you retest after system is stable again.

Good point. I've been watching those. They don't really describe the issue I'm having, but yeah, good call.

Out of curiosity, is there any way to log errors with plugins (such as from console)? If I could get a log of what is exploding in AGH, that would make this a lot easier.

I used the community plugin from maxit/mimugmail, so it's installed via the plugin. Nothing too fancy or special there.

This isn't the first time I've seen this and haven't figured out the cause yet. Short version is that every few updates to OPNsense, AGH crashes badly and can't be restarted without wiping it out and starting fresh. Trying to track down the cause and resolve it once and for all. I've seen a few people post with similar issues, but they mostly just get told off (ie, "Doesn't happen to me, so it's your problem" type of replies). I acknowledge this isn't happening to all firewalls, but I have two of them doing this...and oddly, they don't always break on the same updates.

Ok, here's the pile of info on what I'm seeing and tested, using today's crash as an example. Previous run-ins with this issue were identical:

• AGH and OPNsense work great for months at a time. Not a single crash, failure, or error.
• AGH is the sole DNS on the firewall. I do not use Unbound.
• When this occurs, it's usually after an update to OPNsense or the AGH container. Either can trigger it, but the results are the same.
• About 2hrs after the update to 24.7.10_1, I began getting alerts from my Uptime Kuma system that AGH wasn't responding. Except...it was when I checked. Appears almost as if the AGH plugin crashed and restarted.
• About 4hrs after the update to 24.7.10_1, I began getting reports that users had sites not loading. If they refresh, it works fine. Again, sounds like AGH crashing and restarting, but my pings to it never show a drop.
• At 5hrs, I got a bunch of panic-calls. The internet was 100% down. In fact, OPNsense had crashed. No ping, but all the lights are still on. Had to hard power-off the system. Unfortunately, this wipes my memory-logs, so I have no idea why OPNsense died. Aside from patch-reboots, it's been running for about 1yr without being fully powered off, so this is new.
• It came back up and AGH won't start. I gave it a bit and it never started. Since there's no AGH logs, I have no idea why. Manual start runs for about 3 seconds, then stops again. These are identical symptoms to the last time this happened about 4mo ago.
• As I was advised last time, I uninstalled AGH and reinstalled, then migrated back the yaml file. Same results. It sometimes fails to start, sometimes just crashes.
• Again, as advised last time, I reinstalled AGH and started with a clean yaml. It starts fine and has no issues or indications of a problem. Last time I had to manually rebuild everything for no good reason. Looks like I need to again.
• Plenty of others have had issues with updates breaking AGH, so there's definitely something going on. However, I don't know what the trigger is or what's actually breaking and would appreciate some advice, guidance, or whatnot. Starting clean with AGH every 2-3 OPNsense updates isn't viable.
• In the interim, Unbound works fine. I'd really prefer to use AGH, but if it's going to eat its own face every few updates, that may not be an option.

Any ideas or things I may not have tried?

That's essentially it: After the 24.7.1 update, the Adguard plugin is visible, but refuses to start.

Any ideas?

Best e.

I had the same issue. It would start and instantly stop. Reviewed the config and everything looked fine. Ended up deleting the yaml configuration file and redoing the whole configuration. Worked fine with a fresh config, so it acts like there was some setting it didn't like in old configs.

No one's had wifi-calling issues but me? I find that hard to believe. :-p

Of late, we've been having loads of issues with our cell phones not getting calls (ie, they don't ring, but then there's a voicemail waiting), or when we make calls, it's just dead air for 20-30 seconds and then finally starts ringing. Problem vanishes if we switch from wifi to mobile network.

For the longest time, I blamed my cell carrier and/or my wifi. Changed carriers, same issue. Changed wifi, same issue. Very odd. So, with nowhere else to look, I wondered if there's something that might be causing OPNsense to drop wifi-calling connections, especially if idle for a while? Ie, we leave the phone untouched for 4hrs, then try to make a call...would OPNsense have some kind of issue with re-establishing the ePDG connection? Some sort of timeout maybe?

I know I'm grasping at straws, but figured I'd reach out to the experts and see if anyone knew!

Setup:
* OPNsense (current version)
* Wifi via Ruckus AP, with ePDGs enabled. Ruckus has ruled out all possible issues on their end after way too many hours on the phone with them. Tested with a Unifi AP and had same results, so I begrudgingly agree with Ruckus.
* Android 12/13 phones (same issue occurs for people visiting this location and using wifi)
* All devices seem to work fine/better when not on our building wifi

I noticed that when creating the cloudflare api token, Acme required:
Zone Resources set: Include | All zones.   This appears to be the problem.
To sum it up:
Zone | DNS | Edit
Zone Resources | Include | All Zones
Client IP (not using this field)
TTL | set a valid date range
This appears to work OK.

Tried this. Still says the domain is invalid. I've got all zones allowed and a TTL, as well as the edit permissions.

Does seem to be the case! I definitely didn't mean to break the acme plugin. :D

Lacking other options, I did try the Caddy plugin. No luck...but different results.

Example, it's setup with some.sitename.com points to handler 192.168.0.1, port 1111. I go to some.sitename.com:443 and it gives me a secure blank page. It does not forward to 192.168.0.1:1111 at all.

Progress, maybe? Still would love to know why the built-in plugin isn't working, but no one seems to want to talk about it, judging by the other threads about this. :)

I really don't want to learn Caddy to fix an issue that just cropped up with the built-in system. I'll consider that a last resort.

Side-note...tested again using the global API key. Also says the domain is invalid.

I've seen and read many posts about issues with Cloudflare, but have been using it without issue for about 1-2 years, using the generated API keys from CF. I use a wildcard domain and all renewals worked from 2022 until about 70 days ago. Then, mysteriously, they stopped working with the errors below. Hoping someone has some ideas on this as I've been beating my head against it for days.

Issue:

• Starting about 70 days ago, the renewals began failing with "invalid domain" and "Error add txt for domain"
• In the past, others have fixed this with updates (I'm current on both OPNsense and plugins) or new API keys (tried that)
• Rebuilt all stages of the cert and issue persists
• Tried with a single subdomain and issue persists

Tested:

• Recreated the verification challenge, as that's where it's failing. Same errors.
• Verified/recreated the API key permissions in case something changed on CF's end. Same errors.
• Switched to a single subdomain, rather than wildcard. Same errors.
• Recreated all stages of the request. Same errors.
• Created a new API key with correct permissions. Same errors.
• Contacted CloudFlare. They blame OPNsense, because of course they do.
• NOTE: The API key does have zone read and dns edit permissions

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See: https://github.com/acmesh-official/acme.sh/wiki/How-to-debug-acme.sh
Please add '--debug' or '--log' to check more details.
Error add txt for domain:_acme-challenge.somedomain.com
invalid domain
Adding txt value: <somestring> for domain: _acme-challenge.somedomain.com
Getting webroot for domain='*.somedomain.com'
Getting domain auth token for each domain
Single domain='*.somedomain.com'
Using CA: https://acme-v02.api.letsencrypt.org/directory

I agree, but would still like to figure out why I can't port redirect lan to lan.

I'll admit I'm baffled by this one and it seems like it should be really easy...I'm clearly missing something.

I can port-forward all I want from WAN > LAN without issue. Example, WAN port 9999 forwards into a specific LAN device port 99. Easy. Works great.

Where I run into problems is LAN > LAN forwarding for ports that do hit the firewall (so this isn't a layer-2 issue, as it's not going from client -> server, but rather client -> fw -> forward to server). I know, I know...this is because someone keeps changing the IP of the LAN server and I want to update it on one spot, rather than inform a dozen users that the IP changed again. My goal is that they just go to a port on the firewall and it redirects them to wherever the LAN server is this week.

• Firewall LAN IP is 192.168.0.1
• LAN server is 192.168.0.5
• NAT rule forwards firewall port 9999 to LAN server port 9999
• Client machine goes to 192.168.0.1:9999. They should get 192.168.0.5:9999, but instead get a timeout. Firewall logs say that the traffic WAS redirected successfully. LAN server doesn't see any traffic from the client or the firewall.
• Client machine goes to 192.168.0.5:9999. Site works fine
• LAN server's internal firewall disabled to ensure it was not the cause of issues.
• Tested with reflection enabled and disabled. No change

What am I missing here to redirect LAN to LAN?