Diagnosing extremely slow network operations.

Posted by Chris Becke on Super User See other posts from Super User or by Chris Becke
Published on 2010-05-18T15:16:59Z Indexed on 2010/05/18 15:21 UTC
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Filed under:

home-networking

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networking

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SMB

The network: * A windows 7 PC with 2 NICs - one connected to an old style ethernet hub - the other to the internet - with internet sharing enabled * An Apple iMac connected to the hub, successfully utilizing the ICS to access the internet.

My problem: Using the Mac, copying from the internet is fast. However, if I connect to a SMB: share on the Windows 7 PC and try and copy anything > a few kb the copy operation is appallingly slow with my network card using the Windows 7 control panel showing ~.1% utilization.

The NICs are 100Mbs and show a 10x larger throughput (now ~1%) if I download large files over the internet using the Mac.

WTF?

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