Upload filesizelimit external user

Hello everyone,
I have a problem when uploading to a share.

An external user is supposed to upload a file >20MB to a shared folder with PW. Then I get the message “unknown error occurred”. The file does not appear in the folder.

I have already tested different browsers, as well as various settings on nginx and PHP 8.2 in my Nextcloud 27.1.3. No success.
Of course, nothing can be seen in the logs here either.

If I upload files >500MB with an internal logged-in user (internal network), no problem.
If I log in externally with the owner of the folder or another authorized user and upload files >20MB to the folder, no error occurs and the file appears in the folder.

So this must be a setting on the part of Nextcloud itself…? Does anyone know this setting, or how can I bypass this limitation?

Thank you very much

Maybe a problem with chuncked uploads. Perhaps you can generally change the file size for the upload.
docs of chunked file upload
docs set upload file size

sounds good. But I dont know how I should integrate this.
the upload file size is at 10G… so there is not teh problem :slight_smile:
Many thanks for your answer

I switched the chunk…
php occ config:app:set files max_chunk_size --value 0
→ test no change
php occ config:app:set files max_chunk_size --value 25971520
→ test with 20MB file, no change…

It was a good idea

Does anyone else have any ideas about what could be checked or adjusted?
Unfortunately the chunk didn’t work