RE: HTTP file upload timeout, Error Code 10060

You have a packet sniffer problem here. You should use Ethereal (or
Microsoft's Network Monitor).

Also, it sometimes is as simple a bad NIC that goes in and out. Double
check that.

"Janis Irbe" wrote:

> Hello,
>
> We recently upgraded to ISA 2004. Now some users are complaining as they are
> getting Error Code 10060: Connection timeout while uploading files through
> HTTP, for example, to their external webmail.
>
> We tested that and found that small files (10-30kB) are no problem, but with
> larger ones error appears indeed, however not in 100% of cases. Basically,
> the larger the file the smaller the chance to successfully upload it. For
> example, 600kB file upload was succesful after 8 retries.
>
> What's strange in this behaviour is that successful upload is almost instant
> even with larger files. And you may always know there will be timeout, as
> connection is always significantly delayed in the case of being refusd, even
> with smaller files (like 40kB). Timeout varies from 25 to 50 seconds. During
> this status bar is showing "Sending request to 'sitename'..."
>
> We tested the same site with alternative proxy (squid 2.5) and had no
> problems with upload. Network link in this case was different, though. On
> client side we tested on both IE6.0 and Firefox 1.04 and their behavior was
> the same.
>
> We have an average of 200 active sessions on ISA server. The server hardware
> is quite new, and nothing in performance monitor is showing anything that
> could point to any congestion. Judging by behaviour it isn't really hardware
> or network performance related. Or is?
>
> Any suggestions?
>
> Janis Irbe
.

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