Upload not succesfull

Hi everybody,

i have a problem with my wordpress. I want to put a video in my article. The problem is, when I’am uploding the file, there is either a IO Error (what does it mean?) or it seems to work but wenn i click on “Save changes” after uploading, the video is not in my media library or in the gallery of the article. Can’t find it anymore.

Whats wrong? The size of the videofile is 10.2 MB. Never had Problems with videofiles before. It’s a self hosted wordpress blog. My hoster has no filsizelimit so there should be no problem right?

Greetings
DerJoe