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Win 8.1 slow network transfer speed

Posted on 2014-02-04
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Last Modified: 2014-02-10
I have a user who is trying to transfer data from a Windows7 laptop to his Win 8.1 desktop.  When the transfer is initiated from the win8 PC, the transfer speeds are appalling - 50mb taking over 30mins to transfer.  When the same transfer is initiated from the win7 laptop (same data etc), it completes in seconds.

I have tried my win8 laptop in the same network port as the PC, and the transfer speeds are fine - so this should rule out a general network issue.

I have also disabled "large send offload" on the Win8 PC.  This improved transfer speeds slightly, but not significantly.

Both devices are connected via Gb connections.

Any ideas??
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Question by:Darthter
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Expert Comment

by:McKnife
ID: 39833219
Hi.

As hard drives are involved as well as networking, we should first eliminate one.
Please download and use netio and display the results here: http://www.ars.de/ars/ars.nsf/docs/netio - NetIO does not use the harddrive. Benchmark both sides with it.

Also please make sure no virus scanners are involved.
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Accepted Solution

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Darthter earned 0 total points
ID: 39835155
Got it sorted....

Disabled the following protocols on the NICs of both devices:
 - Large Send Offload
 - Receive Side Scaling

Transferring approx 1.5Gb took about 20secs.
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LVL 54

Expert Comment

by:McKnife
ID: 39835464
This adjustments should not be needed. It seems the driver is bugged, try newest drivers. If no better, you can resort to these manual adjustments.
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Author Comment

by:Darthter
ID: 39835828
I tried changing the driver....made no difference.
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Author Closing Comment

by:Darthter
ID: 39846794
Sorted before any suitable solutions offered.
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