With Nextcloud-App (Android) no account setup possible

General Discussion
1

I didn’t really find similar issues in the forum.
I have Nextcloud and with dietpi-letsencrypt a certificate with the HSTS [OFF] option installed.

Security & setup warnings by Nextcloud:
AppAPI deployment daemon
E-Mail-Test
PHP-Module
PHP Imagick-Modul

Created an account with admin nextcloud e.g. > test <

In the LAN I reach Nextcloud with https://dietpi_ip/nextcloud/login
with desktop / browser and smartphone / browser
and can also log me into the account > test <.

From the internet with a mobile smartphone I reach Nextcloud with https://my_domain.de/nextcloud.
But I can’t log into the account > test <.

In addition, I cannot create an account from the LAN with the following Android apps:
Nextcloud (Android) FDroid Version 3.34.1 and
Nextcloud Notes (Android) FDroid Version 4.5.2 and also not with
DAVx5 (Android) FDroid Version 4.5.6.1

Should I repeat the Letsencrypt certification with dietpi-letsencrypt with the HSTS [ON] option?

Maybe someone else has these difficulties.
The interplay of Nextcloud and Smartphone is important to me.
Thanks for a support.

2

I doubt this has anything to do with the certificate. You are able to reach NC from internet using HTTPS, therfore certificate is working.

3

What message do you get when you try?
Did you add your domain to Nextclouds trusted domains?
https://help.nextcloud.com/t/how-to-add-a-new-trusted-domain-in-nextcloud-ssh-or-cpanel/180973

4

Hello, Thank you for your support.

I do not receive a message when logged in to the smartphone from the mobile internet.
The login window remains, but the input line of the password is empty.
Exactly the same situation with the empty password line I also get when using the Nextcloud (Android) - APP from the LAN.

I’ll check this at the moment.

5

Ok I made a quick test and I could create a user and log in. I also use davx and the notes app since over a year with my setup.

so there is no message at all? Also no “incorrect password” or something like this?

Log in with the admin account and check the logs in the admin section, maybe something is in there.

6

Hello Joulinar and Jappe, i’m back.

no, only the password line is empty when I click on Login.

No, I have no domain registration in /var/www/nextcloud/config/config.php.
I have completed it and it looks like this now:

‘trusted domains’ =>
array (
0 => ‘localhost’,
1 => ‘*’,
2 => ‘my_domain.de’.
3 => ‘dietpi_ip’,
)

Then I tried to set up an account with Nextcloud (Android) - APP and name / password again.

It didn’t work again. Finally, I signed up with an app password
and on this way I could finally set up an account.

On this way it also worked with Nextcloud Notes.

A big thank you to both of you for the support in this forum.