Is there a documented limited on the number of download connections?

I have itunes 10 running on windows vista and when the option
"allow simultaneous connections" is on, itunes tries to make
3 server download connections. The 3rd connection always fails.
Has anyone else had this problem? Is it a windows resource restriction
or itunes server related? My network bandwidth is not the issue.
thanks

Jimthetechie wrote:
But, I have also observed that the 3rd connection from itunes fails
even when this connection is to a different download area/site
(Univ. of Tenn., Stanford, MIT, etc).
But Podcasts are not downloaded _from iTunes,_ so it's not a connection to iTunes that's causing the symptoms you experience. Podcasts are hosted by whoever the Podcast's producers choose, in other words, the episodes are stored remotely from iTunes. When iTunes finds new epsiodes for any of your subscribed Podcasts, the download is between the host site and _the iTunes *on your computer.*_ Effectively, the Store is no longer involved.
So in theory, suppose Podcasts from different producers were stored on the same host, and that host offered a low price which had a condition that restricted simultaneous downloads to the same destination computer, that could give the same symptoms becasue the Podcasts are coming from the same host. I'm not saying that's definitely what's happening, but it could be a possibility. And the reason why a host may do that is to ensure that everyone has reasonable access to their servers without that preventing others from getting access.
More info - I am connected to itunes as guest. Would it make
any difference if I were logined as an active user account to
the itunes site?
I doubt it, I download without being logged in at all. When these third downloads fail, do you get an error code? Also, how do you eventually manage to get the failed download?
Phil

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