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iis ftp : Windows 2003 server IIS 6.0 with dropping connections



snbdman
5/1/2007 8:08:00 PM
I am currently administrating a Window Server 2003 R2 SP1 running IIS 6.0
hosting three websites and four ftp sites. This server shares a full T1 with
the rest of the office network users. The websites and three of the ftp
sites do not receive much traffic.
I am using Windows firewall and have it set to allow ftp connections.

One of the four ftp sites is the companies main audio upload site were
programmers upload files ranging in size from 2MBs to 30MBs. This ftp site
is configured only to allow authenticated users. Most of the clients are
able to upload their programs fine but there are some who can’t get on period
or get kicked off half way through there upload. Any idea why this is
happening?

I set the max number of users in IIS to 100 and the timeout to 6000 seconds
which seems ridiculously longer them it needs to be. However these setting
seemed to have resolved some of the problems. Any ideas of what I change so
I can return these settings to more normal values?

I have noticed that when I upload a 100 MB file using IE 6.0 it will take
about a 30 minutes to upload, but the upload never completes it hangs at
about 10 seconds. I have to ctrl+alt+del out of it to kill it. Any ideas to
why this upload is hanging?

Thanks

Steve
Peter O'Dowd (MVP)
5/7/2007 1:31:30 PM
Steve,
I share your pain. There are a multitude of things that may cause this.
Which is exactly why we wrote our own software to upload to IIS. Blade
Transfer Services. http://www.blade.net.nz/BladeTransferServices.aspx
Download the free 30 day trial and see the improvements :)

We've got heaps of people who are out there using it now.

--
Peter O'Dowd
Exchange Server MVP
http://www.blade.net.nz
[quoted text, click to view]

Bernard Cheah [MVP]
5/16/2007 12:00:00 AM
Well, many possible reasons. network stability and IIS FTP services handling
the connections, etc.
Sometimes the 426 error just came out no where, I've been working with IIS
FTP long time :)
yet - sometimes it just gone wild. To fix this, I change to a much more
decent ftp client, which will auto reconnect, resume all uploads, then i 2nd
set of backup uploads as well :)


--
Regards,
Bernard Cheah
http://www.iis.net/
http://www.iis-resources.com/
http://msmvps.com/blogs/bernard/


[quoted text, click to view]

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