Hello,
We are performing an Http synchronous post using the msxml4.dll (sp2) on
WinXP client machines to post information to a Windows 2003 server using asp.
We have been very successful using this method and have had no issues with
this configuration until recently. There are two issue that we are
experiencing on various machines
1. Workstation will post but then hang and not return.
2. Workstation will post but return 3 - 3 1/2 minutes later with a message
"The download of the specified resource has failed."
On the server side in the IIS logs we see a corresponding http 400 entry
with zero bytes sent and an sc-win32-status code of 64 which indicates (The
specified network name is no longer available). We also know that these posts
have been processed on the backend but fail to make it back to the client.
I have to believe that this is a network related issue and am having trouble
determining where to look. My questions are:
I have read that Http 400 errors refer to a client side problem or network
related issue. Is this true ?
Could this condition occur under high volume or network staturation at the
client site ?
How can we go about debugging what the root cause is ?
If someone could answer my questions and/or provide some feedback I would
greatly appreciate it.