Non-standard port is lost when opening Nextcloud file links from Talk Description

[sanglas4e-arch]

⚠️ Before posting ⚠️

• This is a bug, not a question or an enhancement.
• I've searched for similar issues and didn't find a duplicate.
• I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
• I agree to follow Nextcloud's Code of Conduct.

Steps to reproduce

When a Nextcloud instance is exposed through a non-standard HTTPS port, links to files shared in Nextcloud Talk are displayed correctly, including the port number.

However, when tapping the link in Talk, the port is lost and the URL is opened on the default HTTPS port 443.

The same URL works correctly when copied from Talk and pasted directly into a web browser.

Server is exposed through HTTPS on a non-standard port: 4446

Server URL
https://example.com:4446

Steps to reproduce

Configure a Nextcloud instance to be accessible at:

https://example.com:4446

Create or obtain a file link, for example:

https://example.com:4446/index.php/f/12345

Send this link in a Nextcloud Talk conversation.

In Talk, the link is displayed correctly with the port:

https://example.com:4446/index.php/f/12345

Tap the link.

Expected behaviour

Expected behavior

The link should be opened using the original URL, including the non-standard port:

https://example.com:4446/index.php/f/12345

Actual behaviour

When the link is opened from Talk, the port is lost and the resulting URL uses the default HTTPS port:

https://example.com/index.php/f/12345
The connection therefore goes to port 443 instead of 4446.

Important observation

If the URL is copied from Talk and pasted manually into Chrome/Firefox on the same Android device, it works correctly:

https://example.com:4446/index.php/f/12345

This indicates that the server, reverse proxy and URL itself are working correctly.

The problem only occurs when the link is opened by tapping it inside Talk.

Android version

14

Device brand and model

Xaiomi

Stock or custom OS?

Stock

Nextcloud android app version

24.0.4

Nextcloud server version

34.1.1

Using a reverse proxy?

I don't know

Android logs

No response

Server error logs

Additional information

Possible relation to Nextcloud Android

This may be related to #12989, which describes problems with Nextcloud Android when using a server on a non-standard port.

Talk appears to recognize internal Nextcloud file links and hand them over to the Nextcloud Android application/file viewer rather than simply opening the original URI in the browser.

It would therefore be useful to check whether the port is being dropped while Talk hands the URL to Nextcloud Android, or while Nextcloud Android reconstructs the server URL from the configured account.

Additional information

The behavior can be summarized as:

Talk message
↓
https://example.com:4446/index.php/f/12345
↓ tap
Nextcloud/Talk Android link handling
↓
https://example.com/index.php/f/12345
↓
port 443

Whereas:

Copy URL from Talk
↓

[daniele-verducci]

Hey @sanglas4e-arch ,
thanks for reporting! I set up an instance to test this, but was unable to reproduce your specific problem.
Maybe I'm doing something different, so here's some information on my setup:

• I used Docker to set up an instance (specifically https://github.com/tobiasKaminsky/nextcloud-client-testing-server with port 4446)
• Installed Talk and shared some files from within talk, using the "+" button near the textbox:

• I installed Files and Talk apps on a real Android device in the same network as the host running Docker and opened the conversation
• Clicked on the files and they opened correctly in the android Files app
• I then tried to manually copy-paste the internal link, and there I encountered an error "Associated account not found"

Here's how I conducted the test:

Screen_recording_20260916_163126.mp4

The "Associated account not found" is something I'll look into, but it's not the same issue you are encountering.

Do you have any idea on what I could have done differently? Can you check with the same configuration as mine to confirm the issue isn't something related to your setup?

Thank you

[mohitsatr]

hi @daniele-verducci, Not related to this issue.
Can you share how I can set up the testing server (https://github.com/tobiasKaminsky/nextcloud-client-testing-server) ? I'm playing around and trying to test the changes in my fork.

Running docker compose up fails:

  => ERROR [nextcloud-ephemeral-master 30/46] RUN su www-data -c "php /var/www/html/occ app  1.1s
------
 > [nextcloud-ephemeral-master 30/46] RUN su www-data -c "php /var/www/html/occ app:enable external":
1.087 App "External sites" cannot be installed because it is not compatible with this version of the server.
------
failed to solve: executor failed running [/bin/sh -c su www-data -c "php /var/www/html/occ app:enable external"]: exit code: 1

[daniele-verducci]

Hey @mohitsatr , sorry it's not (yet) documented... you should use the start, stop and rebuild scripts.
Like:

./rebuild.sh ephemeral-master
./start.sh ephemeral-master
# And when you're done
./stop.sh

Anyway, that is a different problem: not all apps are compatible with the last commit on master, so if you find errors like this, just disable them in Dockerfile. I.e. in your case, comment out the line RUN su www-data -c "php /var/www/html/occ app:enable external" adding an # at its start.

[sanglas4e-arch]

Hi Daniele, We have a dedicated server for nextcloud instance, we are not ussing a docker based deploiment. More information about my issue bellow: As you can see at navigation bar, we use a different port, the 4446 tcp. 2 Copy the internal link [image: nc_1.png] Move to nextcloud talk app into the web-ui, and (3) paste the link Hovering over the pasted link shows the correct address of the file. If you press it, it goes to the folder [image: nc_3.png] The issue occurs when you try to do the same in the NextCloud Talk Android app. The link points to the correct address, but when you press it, it does not open the nextcloud file application, it opens a page in a browser with the address without the port and without the path to reach the file.. I hope these information help you to understand the issue. Do not hesitate to contact me if you need more information. Regards. El jue, 17 sept 2026 a las 7:48, Mohit Sharma ***@***.***>) escribió:

…

*mohitsatr* left a comment (nextcloud/android#17650) <#17650 (comment)> hi @daniele-verducci <https://github.com/daniele-verducci>, Not related to this issue. Can you share how I can set up the testing server ( https://github.com/tobiasKaminsky/nextcloud-client-testing-server) ? I'm playing around and trying to test the changes in my fork. Running docker compose up fails: => ERROR [nextcloud-ephemeral-master 30/46] RUN su www-data -c "php /var/www/html/occ app 1.1s ------ > [nextcloud-ephemeral-master 30/46] RUN su www-data -c "php /var/www/html/occ app:enable external": 1.087 App "External sites" cannot be installed because it is not compatible with this version of the server. ------ failed to solve: executor failed running [/bin/sh -c su www-data -c "php /var/www/html/occ app:enable external"]: exit code: 1 — Reply to this email directly, view it on GitHub <#17650?email_source=notifications&email_token=COS2H5ASUHQNE3K3R3DUJUL5PN3JPA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNZQHE2TENZZGEZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLDGN5XXIZLSL5RWY2LDNM#issuecomment-5709527912>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/COS2H5HT5F2B2RZMR7YZKP35PN3JPAVCNFSNUABEKJSXA33TNF2G64TZHM3DANJWGE4DGNB3JFZXG5LFHM2TINRUGMYTCNZVHCQXMAQ> . Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/COS2H5BHX4RGAI7AGS72HKT5PN3JPA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNZQHE2TENZZGEZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJKTGN5XXIZLSL5UW64Y> and Android <https://github.com/notifications/mobile/android/COS2H5G36PF4OYOPOUYWHG35PN3JPA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNZQHE2TENZZGEZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLTGN5XXIZLSL5QW4ZDSN5UWI>. Download it today! You are receiving this because you were mentioned.Message ID: <nextcloud/android/issues/17650/5709527912 ***@***.***>

[daniele-verducci]

Hey @sanglas4e-arch ,
the images are not visible in your message, anyway I was able to replicate the issue.
Can you confirm it's this one in the video?

Screen_recording_20260917_130306.mp4

In this case, please note this is a bug in Nextcloud Talk, not in Nextcloud files. So you should open a ticket in Nextcloud Talk repo (here: https://github.com/nextcloud/talk-android/issues).
Please check before if the issue is already present. If it isn't, please create it. In any case, I'd suggest to link this comment (or this issue) in the one you find/create so that my video can document how to reproduce it easily.

Thank you!

[mohitsatr]

Thanks for your help Daniele! I have it working now. but I could not find the dummy credentials?

[sanglas4e-arch]

Hi Daniele. Apoligies about the imagenes o f my previous email. Yes, the issue is the same behavior that the video. Regards. El jue, 17 sept 2026, 13:08, daniele-verducci ***@***.***> escribió:

…

*daniele-verducci* left a comment (nextcloud/android#17650) <#17650 (comment)> Hey @sanglas4e-arch <https://github.com/sanglas4e-arch> , the images are not visible in your message, anyway I was able to replicate the issue. Can you confirm it's this one in the video? https://github.com/user-attachments/assets/710309ec-5f5e-4dac-9aaa-20d7aea0a785 In this case, please note this is a bug in Nextcloud Talk, not in Nextcloud files. So you should open a ticket in Nextcloud Talk repo (here: https://github.com/nextcloud/talk-android/issues). Please check before if the issue is already present. If it isn't, please create it. In any case, I'd suggest to link this comment (or this issue) in the one you find/create so that my video can document how to reproduce it easily. Thank you! — Reply to this email directly, view it on GitHub <#17650?email_source=notifications&email_token=COS2H5GKKITBLGHF4VMCD2D5PPA33A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNZRGMZTINJTGI2KM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLDGN5XXIZLSL5RWY2LDNM#issuecomment-5713345324>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/COS2H5GMAJ4VNDPCL5UNHXD5PPA33AVCNFSNUABEKJSXA33TNF2G64TZHM3DANJWGE4DGNB3JFZXG5LFHM2TINRUGMYTCNZVHCQXMAQ> . Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/COS2H5DPEWNDJBMHSKVNHC35PPA33A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNZRGMZTINJTGI2KM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJKTGN5XXIZLSL5UW64Y> and Android <https://github.com/notifications/mobile/android/COS2H5GBWVAV3FZZHYOMWAT5PPA33A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNZRGMZTINJTGI2KM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLTGN5XXIZLSL5QW4ZDSN5UWI>. Download it today! You are receiving this because you were mentioned.Message ID: ***@***.***>

[daniele-verducci]

Thanks for your help Daniele! I have it working now. but I could not find the dummy credentials?

They are in the Dockerfile, but you can check this documentation (not yet merged): tobiasKaminsky/nextcloud-client-testing-server#18

[daniele-verducci]

Hi Daniele.

Apoligies about the imagenes o f my previous email.

Yes, the issue is the same behavior that the video.

Regards.

El jue, 17 sept 2026, 13:08, daniele-verducci @.***>
escribió:
…

Cool! Please let me know when the other issue is open, so I can close this.
Thank you!