Delay in Serving Web Pages

IIS >> Delay in Serving Web Pages We have a web server running Win2k server and IIS 5.0 (complete with all service packs) set up in a DMZ using a Sonicwall Pro230 firewall.
We are experiencing a delay of approximately 20 seconds between requesting a web page and it actually arriving at the browser.
From monitoring the server it appears that IIS prepares the page contents very quickly which is then followed up by a lag before the page actually arrives at the browser. This happens when pages are requested over the internet, from the LAN, or even from another machine on the DMZ (connected via a 100Mb switch).
It looks like a networking issue rather than an IIS performance or bandwidth issue. Weâ??ve just taken delivery of another Dell Web server and are experiencing exactly the same problems on that as well.
IP address of server is fixed.

Web Programming197

IIS >> Delay in Serving Web Pages is this the first request to the web application ?
or you experience same latency with all pages ?

if you browse from another machine within the DMZ.
same speed ? or is faster response ?

what do the page actually do ? connect to data source,
runs a query and return records ?

if you test a simple response.write "hello world" - same behavior ?

--
Regards,
Bernard Cheah
http://support.microsoft.com/
Please respond to newsgroups only ...

"Steve Wright" <EMail@HideDomain.com> wrote in message
news:EMail@HideDomain.com...
> We have a web server running Win2k server and IIS 5.0 (complete with all
service packs) set up in a DMZ using a Sonicwall Pro230 firewall.
> We are experiencing a delay of approximately 20 seconds between requesting
a web page and it actually arriving at the browser.
> From monitoring the server it appears that IIS prepares the page contents
very quickly which is then followed up by a lag before the page actually
arrives at the browser. This happens when pages are requested over the
internet, from the LAN, or even from another machine on the DMZ (connected
via a 100Mb switch).
> It looks like a networking issue rather than an IIS performance or
bandwidth issue. Weâ??ve just taken delivery of another Dell Web server and
are experiencing exactly the same problems on that as well.
> IP address of server is fixed.
>

IIS >> Delay in Serving Web Pages I am running IIS just fine on a SonicWALL network - LAN and DMZ both
work equally well. I've seen one case that sounds like yours - it
turned out to be the IIS was set to do DNS lookups for each client
that connected, and if there is no PTR record in place for the IP you
are coming from, it has to time out during that process, which might
explain the delay.

Make sure you test with telnet client on port 80, to see if the basic
TCP connection snaps open within milliseconds of the request.

"Bernard" <EMail@HideDomain.com> wrote in message news:<EMail@HideDomain.com>...
> is this the first request to the web application ?
> or you experience same latency with all pages ?
>
> if you browse from another machine within the DMZ.
> same speed ? or is faster response ?
>
> what do the page actually do ? connect to data source,
> runs a query and return records ?
>
> if you test a simple response.write "hello world" - same behavior ?
>
> --
> Regards,
> Bernard Cheah
> http://support.microsoft.com/
> Please respond to newsgroups only ...
>
>
>
> "Steve Wright" <EMail@HideDomain.com> wrote in message
> news:EMail@HideDomain.com...
> > We have a web server running Win2k server and IIS 5.0 (complete with all
> service packs) set up in a DMZ using a Sonicwall Pro230 firewall.
> > We are experiencing a delay of approximately 20 seconds between requesting
> a web page and it actually arriving at the browser.
> > From monitoring the server it appears that IIS prepares the page contents
> very quickly which is then followed up by a lag before the page actually
> arrives at the browser. This happens when pages are requested over the
> internet, from the LAN, or even from another machine on the DMZ (connected
> via a 100Mb switch).
> > It looks like a networking issue rather than an IIS performance or
> bandwidth issue. Weâ??ve just taken delivery of another Dell Web server and
> are experiencing exactly the same problems on that as well.
> > IP address of server is fixed.
> >