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Whenever I'm watching a YouTube video the downstream just stops at a random point (normally at the middle of the video), and whatever I try to do (reload the page, clean cache) I just can't watch the video past that point.

I've Googled a bit and seems that I'm not alone, does anyone know how to fix this?

I'm using Windows 7 Build 7100, Firefox 3.5.5 with Adobe Flash Player 10 and I've a 24Mbps ADSL connection, in Portugal.

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Try the beta flash viewer It's also super helpful if you include your OS (and version), and any thing else that might be of interest (say, version of flash) – Tyler Dec 18 '09 at 2:22
I have the same issue using ubuntu 9.10 in firefox – Sakamoto Kazuma Dec 18 '09 at 3:25
up vote 2 down vote accepted

Try uninstalling Adobe Flash and reinstall the Flash 10.1 beta. Also, reset the router or modem and make sure than you're not maxing out either your the routing table with torrents or your bandwidth.

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That fixed it, thanks. – Alix Axel Dec 21 '09 at 16:44

I would suggest you to try installing Google Chrome, but it could be useful to know what Operating System you're running (Windows Xp/Vista/7, Gnu/Linux of what flavour, MacOS 9.2/X, etc ?)

Best regards

EDIT: while you're waiting for some REAL solution, you could be interested in this: When you are watching a video with the behaviour you've reported in your answer, add "kiss" to the URL

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I have the same problem on Chrome sometimes – Kaiser Advisor Dec 18 '09 at 2:42
I really doubt it's a Firefox problem. – Sasha Chedygov Dec 18 '09 at 2:44
That is a nice link, thank you. – Alix Axel Dec 21 '09 at 4:04

Why don't you check it on another browser, IE, Opera etc...... or you may try installing the flash (Active X and Player) and shock wave player as well ??

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