I am REALLY stuck here. I've been trying to solve this for the past two
days!
I have a web application that used to work just great, but recently
started having some problems. This is a .NET application using
framework 1.1.4, being served from a Windows 2003 server.
Our application serves out PDF documents that are stored as BLOBs in an
Oracle 10g DB. Up until a few days ago, this was working fine. All of a
sudden, and for no apparent reason, this *stopped* working the majority
of the time. It does still work *sometimes*, just not most of the time.
The download will start, and the speed will just drop. It drops to
around 15k/s, then down to 5k/s, then to 0.0k/s, all in a matter of
about 5 seconds.
HTML is still served fine in the same application. It seems slower than
before, but it still *works*. Randomly, even the PDFs will download
successfully.
This is what I'm seeing in the IIS log files when it *works*:
sc-status: 200
sc-substatus: 0
sc-win32-status: 0
This is what I'm seeing when the PDF download *doesn't* work:
sc-status: 200
sc-substatus: 0
sc-win32-status: 64
sc-win32-status 64 seems to indicate "The specified network name is no
longer available", but I can't imagine why that would be happening.
I've tried playing with the settings in IIS, I've tested on different
machines - it works fine from the server when using "localhost", but it
doesn't work anywhere else, except sporadically. Does this sound like a
network problem (it was working flawlessly a few days ago and we
haven't changed the app)? An application setting? An IIS setting? A
router setting?
Any ideas will be *greatly* appreciated!!