Debug error using External Storage with WebDAV

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Nextcloud version (eg, 12.0.2):
Operating system and version (eg, Ubuntu 17.04): Alpine Linux 3.8
Apache or nginx version (eg, Apache 2.4.25): 1.14.1
PHP version (eg, 7.1): 7.2.12

The issue you are facing:
Failing to connect external storage using WebDAV.
The external storage provider is 1und1.

I can mount this WebDAV storage w/o issues in Windows as a network share.

Is this the first time you’ve seen this error? (Y/N): y

Steps to replicate it:

  1. Settings
  2. Admin
  3. External Storage
  4. Select type “WebDAV”

The output of your Nextcloud log in Admin > Logging:


The output of your Apache/nginx/system log in /var/log/____:


How can I debug this issue in order to identify the root cause?


I have the exact same problem.

In my case, the external storage is an Nextcloud as well, and I can access it via WebDAV from Ubuntu Nautilus without problems.

The Nextcloud in which I want to add the external storage only shows a red circle with exclamation mark in the settings, without writing anything into the error log.

(In case anyone asks: Connecting via Nextcloud-Login works. But I want to add the external Nextcloud via WebDAV and not via Nextcloud, since I want the data on the external Nextcloud to be encrypted.)

Anyone having an idea? Thanks!

I have the same problem :frowning: