Immich•3mo ago

Error connecting to server

I've created an immich docker container that I can connect to on my wifi with <ip>:<port> just fine.

I've then used cloudflare zero trust to expose this externally at immich.<domain>.com and visiting this on my PC works fine.

I've authorized custom headers to bypass my 0auth security when using the mobile app and loaded them into immich's settings.

However, putting the domain into the connect box when the app first loads up gives me an error on and off wifi.

error while checking server availability:
format exception unexpected character (at character 1) <!DOCTYPE html>

Immich•10/18/25, 10:29 PM

:wave: Hey @Scyrizu,

Thanks for reaching out to us. Please carefully read this message and follow the recommended actions. This will help us be more effective in our support effort and leave more time for building Immich :immich:.

References

Container Logs:
```
docker compose logs
```
```
docker compose logs
```
docs
Container Status:
```
docker ps -a
```
```
docker ps -a
```
docs
Reverse Proxy: https://immich.app/docs/administration/reverse-proxy
Code Formatting https://support.discord.com/hc/en-us/articles/210298617-Markdown-Text-101-Chat-Formatting-Bold-Italic-Underline#h_01GY0DAKGXDEHE263BCAYEGFJA

Immich•10/18/25, 10:29 PM

Checklist

I have...

:ballot_box_with_check: verified I'm on the latest release(note that mobile app releases may take some time).
:ballot_box_with_check: read applicable release notes.
:ballot_box_with_check: reviewed the FAQs for known issues.
:ballot_box_with_check: reviewed Github for known issues.
:ballot_box_with_check: tried accessing Immich via local ip (without a custom reverse proxy).
:ballot_box_with_check: uploaded the relevant information (see below).
:ballot_box_with_check: tried an incognito window, disabled extensions, cleared mobile app cache, logged out and back in, different browsers, etc. as applicable

(an item can be marked as "complete" by reacting with the appropriate number)

Information

In order to be able to effectively help you, we need you to provide clear information to show what the problem is. The exact details needed vary per case, but here is a list of things to consider:

Your docker-compose.yml and .env files.
Logs from all the containers and their status (see above).
All the troubleshooting steps you've tried so far.
Any recent changes you've made to Immich or your system.
Details about your system (both software/OS and hardware).
Details about your storage (filesystems, type of disks, output of commands like
```
fdisk -l
```
```
fdisk -l
```
and
```
df -h
```
```
df -h
```
).
The version of the Immich server, mobile app, and other relevant pieces.
Any other information that you think might be relevant.

Please paste files and logs with proper code formatting, and especially avoid blurry screenshots.
Without the right information we can't work out what the problem is. Help us help you ;)

If this ticket can be closed you can use the

/close

/close

command, and re-open it later if needed.

Zeus•10/18/25, 10:34 PM

The headers either aren’t being sent (it’s experimental, but they do tend to work) or cloudflare isn’t accepting them

ScyrizuOP•10/18/25, 10:40 PM

I've just double checked and i think you may be right.
enabling wifi and connecting with the IP:port works.

ScyrizuOP•10/18/25, 10:40 PM

Any suggestions on how to fix this?

ScyrizuOP•10/18/25, 10:40 PM

custom headers setup the same way work fine via the Lissen App

IImmich ## Checklist I have... 1. :ballot_box_with_check: verified I'm on the latest rel...

ImmichAPP•10/18/25, 10:41 PM

Successfully submitted, a tag has been added to inform contributors. :white_check_mark:

Zeus•10/18/25, 11:09 PM

Sorry, not sure. It’s an experimental feature like I said so weird things can happen

ScyrizuOP•10/19/25, 1:32 AM

Any data I can provide to expedite a bugfix?

Zeus•10/19/25, 2:23 AM

Honestly unless you figure out how to fix it yourself not much. As experimental features we do not accept bug reports or dedicate resources to developing it - it’s a best effort by the community contributions

Zeus•10/19/25, 2:27 AM

#15230 might have people talking about it

ZZeus #15230 might have people talking about it

Immich•10/19/25, 2:27 AM

[Issue] [META] Experimental network features (immich-app/immich#15230)

ScyrizuOP•10/19/25, 2:53 AM

I'm unsure.
I can point you to the open source app, Lissen which has the feature working with no issues with headers to my knowledge.

https://github.com/GrakovNe/lissen-android/

ScyrizuOP•10/19/25, 4:37 PM

I've fixed the issue, it was in fact on my end.

ScyrizuOP•10/19/25, 4:37 PM

I had cloudflare setup the same way I had lissen setup to include looking for the same secret id and password, but was using the secrets i made for immich.

ScyrizuOP•10/19/25, 4:38 PM

needed to make a mobile application bypass for the custom headers that matched

ImmichAPP•10/19/25, 4:38 PM

This thread has been closed. To re-open, use the button below.

Error connecting to server

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