Solved

HUAWEI E220 HSDPA USB Modem random disconect

Posted on 2008-06-18
8
4,474 Views
Last Modified: 2013-12-21
I have a HUAWEI E220 HSDPA USB modem and I use the Mobile Partner application to monitor the connection. The problem I experience is that the usb port randomly resets and disconnects the modem.  There are no error messages its the same as if I unplugged the device and then reconnect it. Why will a USB post randomly reset a device connected on it? could it be a bug in the driver software? It worked fine for a long while now but it looks like the problem increases as time goes on.  

Operating System: windows XP service pack 2
0
Comment
Question by:Chipkin_com
  • 4
  • 4
8 Comments
 
LVL 2

Expert Comment

by:tarcis
ID: 21850675
Did you try a diferent USB port ? Maybe its a problem in your USB. I have seen problems with USB when the Power Supply is old and therefore not sending enough power to the USB. Do you have a spare one PSU?  You can also try a spare USB CARD to plug it in.
If your modem has worked fine before, its most likely NOT a driver problem.
0
 

Author Comment

by:Chipkin_com
ID: 21852469
Hi
I only have 3 USB ports on my gigabyte W511A Laptop. I tried all of them and got the same symptoms. One possible solution could then be to get an external USB hub that uses its own power source. Are power one of  the main reasons for a computer to reset a USB port? Could it also be data buffer overload or some other error that can cause the USB port to reset or disconnect?
0
 
LVL 2

Expert Comment

by:tarcis
ID: 21854652
Actually it could be both the modem or the laptop usb controller problem.
Do you have this problem with another USB device ? Like a pendrive or a usb mouse ?
Did you try another USB CABLE ? (the wire that connects the modem to the laptop)
If there was a buffer overload, the modem would just stop working but I cant see how it would "unplug" and "plugin" again. It sounds more like a physical problem.
But if you can uninstall the driver and modem aplication and reinstall it, we could be more certain.
0
 

Author Comment

by:Chipkin_com
ID: 21871932
I do use a usb mouse as well on the USB port next to the one used for the modem. But I dont have problems with the USB mouse and if the USB mouse is present or not the modem still randomly disconnects. I have two usb cables for the modem one normal one and one that connect to two usb ports for extra power when that signal is low. I used both but is still randomly disconnects.

I also uninstalled the modem drivers just to make sure but it still have the same symptoms. I also used the modem without the Mobile Partner app by just manually dialing the modem from my modem connections but that also didnt solve the problem.

It really seems like a physical problem because it gives me the same message if I unplug the modem from the USB port. It is very strange. I dont know if the service provider can cause the device to disconnect? The strange thing is that for a hole moth it only did it maybe one now it happens mush more often.
0
Scale it in WD Gold

With up to ten times the workload capacity of desktop drives, WD Gold hard drives employ advanced technology to deliver among the best in reliability, capacity, power efficiency and performance.

 

Author Comment

by:Chipkin_com
ID: 21871936
I do use a usb mouse as well on the usb port next to the one used for the modem. But I dont have problems with the usb mouse and if the usb mouse is present or not the modem still randomly disconnects. I have two usb cables for the modem one normal one and one that connect to two usb ports for extra power when that signal is low. I used both but is still randomly disconnects.

I also uninstalled the modem drivers just to make sure but it still have the same symptoms. I also used the modem without the Mobile Partner app by just manually dialing the modem from my modem connections but that also didnt solve the problem.

It really seems like a physical problem because it gives me the same message if I unplug the modem from the USB port. It is very strange. I dont know if the service provider can cause the device to disconnect? The strange thing is that for a hole moth it only did it maybe one now it happens mush more often.
0
 
LVL 2

Accepted Solution

by:
tarcis earned 125 total points
ID: 21874863
Did you try newer drivers ? (youre using the ones from the CD that came with it right ?)
Neither the ISP (Internet Service Provider) or the connection it self can "unplug" the device, the most it could do is simply disconnect the connection.
This only leaves us 2 options.
Either there is a problem with the modem itself, or with you notebook usb power (i doubt it)
If you can, another test that you can do, is use that modem on another machine, if it "unplugs" the modem is mal functioning.
0
 

Author Comment

by:Chipkin_com
ID: 22024013
You were right about the firmware. I uploaded the new firmware that my ISP supplies for this modem and now the modem is stable and does not reset anymore. Thanks
0
 
LVL 2

Expert Comment

by:tarcis
ID: 22024042
Im glad I could help, took a while, but much better then getting a new one!
0

Featured Post

What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

Join & Write a Comment

When posting a question about a Cisco ASA, Cisco Router or Cisco Switch, it can aid diagnosis if a suitably sanitised copy of the config is provided. It is much better to leave as much of the configuration as original as possible, as it could be tha…
Hi there, This article summarizes what you need if you are going to set up your home or small business Network Attached Storage (NAS) to be accessible from the internet. Of course there are configuration differences based on your NAS or router ma…
Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

706 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now