I don't think it is a hardware issue. It is likely a software issue. One
of the layer between winsock and the network card has a bug. That is why
you see it on one computer and not another.
Determining which layer is faulty will be a difficult task ! I don't know
what to say to help you :-(
I agree that it's not a hardware issue. Do you know what layers are there
approximately? I've already ruled out the driver of the NIC itself.
I was mentioning the chipset since there is also software applicable
(driver of the chipset). Also strange is that I have more machines of same
brand and model, which do not show the same behavior.
It's a nice mystery :)
Having a machine with same brand and model is a chance because you can
compare both. Of course if they have different stories, it is likely they
have not so comparable software installed.
There are a number of layers. The most probable culprit is a layer which
"understand" the protocol. Probably the layers at packet level is not the
cause otherwise there would be blocking for all protocols.
It is interesting to read "Windows® Internals"
(http://fresh.amazon.com/product?asin=0735625301). The chapter 12 explain
the networking. Figure 12.2 page 1005 is very intersting: "OSI Model and
Windows Networking Components" http://book.51cto.com/art/200911/160900.htm.
Text is at:
http://images.51cto.com/files/uploadimg/20091104/1038000.jpg
I suggest to anyone to buy this book. It is very very interesting to
understand how Windows works !
I'll keep the list posted if I find more information myself.
Thanks a lot. This kind of information is very useful.
--
francois.pie...@overbyte.be
The author of the freeware multi-tier middleware MidWare
The author of the freeware Internet Component Suite (ICS)
http://www.overbyte.be
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