HTTP error when uploading images

Hi!

I know there’s plenty of threads on the subject but they appears to give conflicting answers so I was wondering if there’s an updated fix on this with v.4.7

It all started a little before the 4.7 update. I started getting the HTTP error when uploading images once in a while but after re-submitting the image in the wordpress loader everything worked fine.

But yesterday, every images I try to upload gets the same HTTP error. I wanted to add 16 pictures to a post and when I tried to upload them, only 3 got uploader, the rest getting the HTTP error. After multiple tries, switching .png to .jpg and trying different sizes, it appears to work randomly, 1 or 2 pictures being added each try. After maybe an hour of trying, I managed to upload 13 of the 16 I wanted.

I didn’t add plugin or modify anything in between. Made my update to 4.7, hoping it work fix it. It didn’t.

Is this related to wordpress or to my host?

Why does it work sometimes but not always? Same picture, different time, sometimes it works, sometimes it doesn’t.

Does somebody know what’s this about?

Thanks a lot for your help!