I have to ask… Did you verify the port on the switch was set to 1GB? Or is it set to auto-negotiate? Or is it possibly set to 100MB? Please provide those details. If it is not set to 1GB on the switch ask if they can set it to 1GB. Also verify the speed and duplex of the card configuration settings.
Make sure the switches are both gigabit switches. Also, the switches could be programmed for 100mbps instead of auto-negotiate.
The switch is a 100 / 1000 auto switching unmanaged
On Gigabit switch keeps connecting and disconnecting with both gigabit nics.
Have tried another 2 pc at point and both connect at 1gb and work fine ( i.e. cable and switch are fine)
have tried pc with both nw cards at another working tested gb network point and same thing.
Reloaded xp and loaded latest drivers for both NIc’s still will only work off an old 100mb switch