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Sorry to hear you’re facing problems 
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Nextcloud version (eg, 12.0.2): 14.0.3
Operating system and version (eg, Ubuntu 17.04):
Apache or nginx version (eg, Apache 2.4.25):
PHP version (eg, 7.1):
The issue you are facing: I am unable to use DroidDAV in Android to sync Calendar and Contact information from Nextcloud. I am using an application password which seems to work fine for other applications, but does not work for Nextcloud
Is this the first time you’ve seen this error? (Y/N): N
Steps to replicate it:
- Click through sync Calendar/Contacts in Android App with DAVDroid.
- Enter username and application password.
- Error pops up
Here’s the debug log from the Android client, it shows that I’m getting a 401 error, although the same password appears to be working for other applications.
The output of your Nextcloud log in Admin > Logging:
PASTE HERE
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
PASTE HERE
The output of your Apache/nginx/system log in /var/log/____:
PASTE HERE