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I have a pretty fast Internet connection and sites load fast, but recently a couple sites started to open very slowly. Even odder, it happens from my desktop computer but not from my laptop computer (both on the same network). Most notably, when I run software updates, it hangs on updating Medibuntu and takes a couple minutes there (again, only on the desktop, and whether I run update from the CLI or from the GUI). I unchecked Medibuntu from my sources, and now it runs fast again. Another site where I still have the problem is "The H" (http://www.h-online.com/); other sites open very fast.

The desktop and the laptop computers have the same software. The desktop is connected to the router by wire, while the laptop is connected wirelessly. The only other real difference, I think, is that the desktop also has an IPv6 tunnel set up through Hurricane Electric (I have not specified a DNS). Since otherwise the network runs fast on both computers, and other sites, I'm suspecting it's the IPv6, but I don't know how to know or how to fix it.

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IPv6 certainly sounds like a culprit. I don't know how to fix it, though, except to disable IPv6 altogether. I'm mostly commenting to bump your question up. – Scott Severance Dec 13 '11 at 4:17
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It wasn't IPv6, I don't think, but I never found an answer. But the problem persisted through the move from 11.10 to 12.04 (both an upgrade on one computer and a fresh install - but with a saved /home partition - on another). So the problem could have been in my settings. However, whatever it was is now gone, so I'd like to close this. If only I knew how! – Kelley Jun 14 '12 at 1:53
Voting to close as too localized at the asker's request. By the way, Kelly, I think you should have a close link that you can use to cast your vote, since this is your question. – Scott Severance Jun 14 '12 at 8:32

closed as too localized by Scott Severance, Bruno Pereira♦ Jun 14 '12 at 8:48

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