Windows or my hardware?

[exe163]

I often find windows disconnect my usb hub. I can't find any solution to fix it. Sometimes, my keyboard and mouse are powered yet I cannot control it in windows and I get a bubble saying USB device not reconignized. Half the time reconnect multiple times fixes the problem, and the other half require rebooting using my backup keyboard. Often, I get disconnected for 5 seconds then reconnect back, this happens mostly when I have my iphone connected to my USB hub.

Both of my hubs use external power and are 1 to 7. I am using Windows 7 Pro, though this happened also during the vista days and even with different hubs.

 

[crazyassazian]

Seems like the hubs.

Same rig during Vista? Does connecting the mouse and keyboard straight up to the motherboard resolve connection issues? Try it so we can rule out components.

 

[exe163]

I would love to isolate the problem also but I can't reproduce this problem since it happens irregularly. Thought the last time it happened was right after I exit sleep mode. Neither my keyboard nor my mouse which were connected to the hub then to the mobo draws power nor respond to my commands. I have tried reconnect the USB hub to mobo many times and nothing happens. Then I used a backup keyboard to reboot my machine. Upon reboot, everything works perfectly again. I cannot connect my main keyboard and mouse directly to the mobo because the cables are not long enough.

 

[bigdogchris]

If your getting the error 'usb device not reconized', 9 times out of 10 it's a bad device.