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Windows 7: Extremely low LAN speed sharing XP units.

28 May 2011   #1

Windows 7 Ultimate x64
Extremely low LAN speed sharing XP units.

Hello people!

We've recently installed a new computer with Windows 7 Ultimate x64 in our old home lan running only XP computers.

We've detected (and apparently solved) several problems, but one of them still remains: There is no way of efficiently access the files in the Windows 7 computers. In fact it is absolutely unacceptable 8 min. to just open a 250 kb word document!!

We've followed several ideas from other forums (as the one of disabling "Autotunning") but We are still in the same point.

As an additional data: it seems not to be a hardware problem as We can access normally the files within the XP machines from our Windows 7 computer.

Could anyone give us some idea?

My System SpecsSystem Spec
28 May 2011   #2

Windows 7 Ultimate x64

Well it's me again...

Eventually I found the problem to my LAN's speed... here it is:

As I said I've had a lots of problems seting up my network since I've added this Win 7 machine to it. One of the problems was with the Ethernet cards. The PCs on my network were working with Ethernet cards with capability for 1GB speed. At first it was impossible to connect them to the LAN until I downgraded the speed to 10MB full duplex; almost surely it is the maximun capability of my HUB (the little equipement where all the PCs are in fact interconnected).

Once I had made this change I checked that I could see the other PCS in the LAN, but I had the problem previously described. Curiously In this configuration I could "see" the other PCs from my "Windows Explorer".

Now I have changed the network speed to "10MB Half Duplex" and the speeds turns to be what was expected. Curiosly again, now, I can't "see" the other PCs and I've had to create an Icon to connect to the server explicitely
My System SpecsSystem Spec

 Extremely low LAN speed sharing XP units.

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