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Optiplex 3040 USB Device Not Recognized Error
I am using a Trendnet KVM (Keyboard, Video, Mouse) device to switch between this Optiplex 3040 and an HP PC. Every time I switch back to the Dell I get an error saying USB Device not recognized. I have used this same KVM on several different PCs and it always works fine.
Any suggestions, please?
Thank you.
RoHe
10 Elder
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July 21st, 2016 19:00
Version of Windows?
You can try this:
See if that solves the problem...
raaone2015
12 Posts
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July 22nd, 2016 17:00
Hi and thanks for the reply. The OS is Win7 Pro (sorry for not including that).
I tried your suggestions and yes, some boxes were checked but, after clearing all appropriate boxes, the problem persists.
bob
RoHe
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43.6K Posts
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July 22nd, 2016 18:00
Go to Windows 7 Power options screen. Click the link to change settings for the currently used power plan (radio button "checked"). On next screen, click link to change advanced options.
In list at left, look for USB Selective Suspend and DISable it. Be sure to apply the change to the power plan, and save the change, if that's requested. Exit and reboot.
See what happens now...
raaone2015
12 Posts
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July 25th, 2016 17:00
Tried as you suggested but, still the same error. The first time I switch to the Dell it works, When I switch to the other computer (by now I have used TWO other computers) and back to the Dell, I get the error.
Thank you for your effort.
RoHe
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43.6K Posts
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July 25th, 2016 19:00
You're not making this easy!
Go to the Power plan Advanced options screen again, and this time disable Hybrid Sleep.
Are the other PCs all Win 7? You might want to compare USB settings on those that work with the Dell.
Does the KVM have its own driver? Did you install it on the Dell? You might also go the KVM's site and look for an updated driver, or maybe contact their tech support to see if they have any recommendations.