THanks for your answer.
Yes, it is quite strange….the last few days i had no problems at all, after i ran the migrate multisite plug in again. After my client logged in with his admin-Account i’m back to square-one with the following error:
Unable to create directory wp-content/blogs.dir/3/files/2015/04. Is its parent directory writable by the server?
besides the permissions, the blogs.dir shouldn’t be necessary at all in WP 4.1.1
Maybe it happens when a different admin account is used?
I observed a strange behaviour in the database:
In the wp-sitemeta the entry of ms_files_rewriting change from 0 (media upload working) to 1 (media upload not working).
What plug in or routine could be responsible for this?
these Plugins are in active use:
Active NETWORK PLUGINS:
– 404 to Start 1.5.8.1
– Acunetix WP Security 4.0.5
– Duplicate Post 2.6
– Duplicator 0.5.12
– Image Widget 4.1
– Migrate Multisite 2.4
– Multilingual Press Pro 2.1.2
– Official Statcounter Plugin
– WordPress SEO 1.7.4
Active SITE PLUGINS
Wordpress SEO 1.7.4
any hint is appreciated 🙂
thanks