After some buggy updates of my websites from 4.5.3 to 4.6.1 I tried a clean installation of a new site on my server (FreeBSD 10.1, PHP 5.6.26, MariaDB 10.X, Apache 2.4)
Downloaded WP 4.1.6 from wordpress.org, put files where they belonged, created DB and configurated wp-config.php accordingly. No additional themes or plugins were installed - no file (Apart from wp-config) altered
I have been doing this kind of work for the last 3 years successfully on other AND my own server. This time I just get a WSOF on the Dashboard, the update page and only half a page (to the sorting bar) when I want to add Themes through the dashboard. The frontend shows perfectly and works flawlessly.
If I run e.g. the index.php from wp-admin on the console I get output: some warnings from WP core files and the obvious "Header allready sent" thanks to the warnings.
Any suggestions what has changed in 4.6.1 that could trip up the server - because I am pretty sure the WP core files work....
Thanks in advance.