Windows 7: can't upload files in Windows 7

I've tried uploading some files to my dropbox account , the small ones (under 1 mb) went ok but when i tried to upload a 5 mb file the upload process went really fast and i got an error saying "Upload failed". Then i thought something is wrong with dropbox.. went to my gmail account, same thing, upload process went really fast and i got an error saying "Upload failed". Tried a web upload site, same thing! (im dual booting with xp) tried my xp us with dropbox and gmail and everything is fine.
Diagnose & Repair function in 7 didn't helped.
I've also noticed that when it happens in my Windows 7 system my surfing turns really slow and i need to restart my machine to get it back to normal .



Thanks for the help... i really don't have a clue what can cause such a thing.

i have the same problem
i there any one have any solution plz??

I was starting to think that i'm the only one.
Now i've found another guy suffering from the exact same thing
Browser uploading issues with Vista & Windows 7? - Yahoo! Answers

I am curious what a dropbox account is. I am personally using Filezilla for any uploading needs and it works like a charm.

google dropbox.. but its nor really relevant, it happens when i try to upload a movie to youtube.

^ I'm really sorry for the bumps but i can't edit my last post. I just figured out something really interesting, apparently Windows 7 doesn't cap my upload rate. I've downloaded Netlimiter and limited my upload to 32 Kb (my original upload rate) , when i do that everything is working fine but if i remove the limitation when i try to upload something im getting a burst of 100 Mb or so. (with null packets im guessing..) and that's what causing the upload to fail

I hope that will shade more light on that weird problem

I am encountering the exact same problem, however I have a temporary fix that works for me.

Just boot up your computer and bring up the boot menu (hold F8 during bootup) and then select "Safe Mode With Networking" from the menu. This will load Windows in safe mode with minimal drivers. It doesn't look pretty, but you'll be able to get online to upload those big files. Once you're done, just reboot as normal.

Hope that helps.

i have the exact same problem. and i happen to have two different computers, my built AMD system with 64 bit Windows 7 and a Dell Inspiron 1525 with 32 bit version. both give me the same problem when uploading to youtube, imageshack, and other upload sites. they just don't finish. I tried in another computer with WinXP in the same network and it worked fine. also then tried in my Windows 7 64 bit system with Safe Mode and it uploaded to imageshack.

weird problem. i only have avira antivir, no other protection software or firewall.

also, this happens in IE, firefox and google chrome.

after allot of tries i came to the conclusion that Nod32 was the responsible for my problems. Uninstalled it and now i can upload normally.

well, not in my case. i still get the problem, and the only way i can upload is using Windows XP mode, becaue now not even safe mode works.

Do you have any security software installed?