We help IT Professionals succeed at work.

We've partnered with Certified Experts, Carl Webster and Richard Faulkner, to bring you a podcast all about Citrix Workspace, moving to the cloud, and analytics & intelligence. Episode 2 coming soon!Listen Now

x

USB Port Issues

Sveach
Sveach asked
on
Medium Priority
281 Views
Last Modified: 2011-09-20
Hi all.

My name is Stephen Veach. I'm on the help desk for a popular weight loss company. Here's a little background on our computer systems. At each location (spread across the country) we have a group of 3-5 computers. Each computer has a usb powered barcode scanner, usb powered barcode printer, and one computer has a usb powered modem and laserjet. My problem is as follows: Occasionally, a usb port will simply stop working. If we move whatever piece of equipment is plugged in to a different spot, it starts working immediately. If we move it back to the original port after some time, it will work fine there. The ports seem to turn themselves off. Sometimes it's when they first turn the machines on for the day. Sometimes it's in the middle of them doing their work. We have well over 1000 computers, and it doesn't affect all of them, but it affects a good majority of them. We have two different models: an HP DX2000 and an HP D220 MT. Apparently these are the same basic computer, the only difference is the NIC. We are pulling our hair out because of this. If we could stop this problem, our call volume would probably drop at least 20%. Any help is greatly appreciated!
Comment
Watch Question

CERTIFIED EXPERT
Top Expert 2012
Commented:
Make sure power saving is not checked off in the USB Hub controller in device manager.  It could also be the case that with all the USB devices attached, current drops below detection level - USB ports are only rated for 5v, 500ma.  A powered USB hub will alleviate this kind of problem, but you may need it for every machine that has more than one USB device.

Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts
CERTIFIED EXPERT

Commented:
"usb powered modem" Thats funny i had a problems with some of my usb device when i had a usb modem plugged in...

I tried everthing just the keyboard and the USB modem plugged it but i got the same result...it was until i removed the modem that took care of the issue....just my 2 cents

Author

Commented:
We have each usb device plugged into its own usb port on the pc, and no usb hubs. Just wanted to clarify that. I've got a test machine sitting over here, and the option for "Allow this computer to turn off this device to save power" is checked. My test machine should look exactly like theirs, so I'm hopeful this will take care of it.
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.