I have installed nextcloud 14.0 on webspace.
I can access files via the browser (firefox), sync contacts + calendars. Everything OK.
Access is via http://nextcloud.martinwloka.de/nextcloud/index.php/apps/files/
Now I have Windows Client installed on laptop.
File used: Nextcloud-2.5.0.61378-daily-20180930.exe
If the query in the connection wizard for the server comes I enter:
http://nextcloud.martinwloka.de/nextcloud - then comes an error message.
The website under
http://nextcloud.martinwloka.de/nextcloud/index.php/login/flow
may be temporarily unavailable or permanently moved to a new web address.
ERR_CERT_AUTHORITY_INVALID
Also at http://nextcloud.martinwloka.de - comes error message.
What did I overlook?