long term solution for: Upload Error – The uploaded file could not be moved to?

Hello,

I have searched google and the forum looking into this issue, and so far i havent seemed to find a permanent solution to this.

plus, when i try to automatically update wordpress, it now asks me for my FTP credentials (which never happened before this) and even when i provide those, it still doesn’t update anything, yet also doesn’t give me any error message, just goes blank and does nothing.

I tried every solution provided on the this website, which i think pretty much sums up all the solutions floating around the forum too: http://www.wpsite.net/the-uploaded-file-could-not-be-moved-to-wordpress/

and nothing works except changing the permissions to 777, which quite honestly is a pain to have to do each time I want to upload something.

I have 2 domains, this error doesnt happen on the second domain,
one my main domain, i have 2 installations of wordpress and the error occurs in both (one is running version 3.4.2, and the other 3.5.1). also i did a 3rd new installation, just to test if the error would still show up, and it did.

I’ve already been in contact with my web host (web hosting buzz) and the only thing that was out of the ordinary is that my files were owned by apache instead of my user, they changed that, but still no change in my problem.

Please, does anyone has any clue as to what is the problem?