USB pen drive interferes with wireless NIC?
30-09-2006, 10:55
|
#1
|
|
Inactive
Join Date: Apr 2006
Location: Manchester, UK
Services: ClearFibre Internet, Vodafone mobile Google Pixel 4
Posts: 9,699
|
USB pen drive interferes with wireless NIC?
Booted into XP today for the first time for a while. I needed to access some Excel files on a USB stick.
First thing that I noticed was that my wireless connection from my Belkin NIC kept dropping every minute or so.
When it happened, the 'Connected to:' entry in the wireless utility status window briefly changed to 'NDIS NOT SUPPORT' before the connection to the router dropped completely.
As the only thing that I could think had changed since last time I'd been in XP was the USB stick, I unplugged it & the problem went away...
The wirelss NIC is a PCI card, not USB so I can't understand why this should be a problem. Anyone come across this before?
|
|
|
|
30-09-2006, 11:07
|
#2
|
|
Inactive
Join Date: Aug 2004
Posts: 782
|
Re: USB pen drive interferes with wireless NIC?
Maybe the USB host controller is malfunctioning?
Possibly?
|
|
|
|
|
30-09-2006, 11:09
|
#3
|
|
cf.mega poster
Join Date: Dec 2003
Location: Baw deep in a munter
Age: 49
Services: Initiations, rep rigging and orgies!
Posts: 5,750
|
Re: USB pen drive interferes with wireless NIC?
Could also be Power related as both those devices will draw a lot of power from the USB controller, try a different controller if you have one or an external powered USB hub.
|
|
|
|
|
30-09-2006, 11:16
|
#4
|
|
Inactive
Join Date: Apr 2006
Location: Manchester, UK
Services: ClearFibre Internet, Vodafone mobile Google Pixel 4
Posts: 9,699
|
Re: USB pen drive interferes with wireless NIC?
Quote:
Originally Posted by TheBlueRaja
Could also be Power related as both those devices will draw a lot of power from the USB controller, try a different controller if you have one or an external powered USB hub.
|
The NIC's a PCI card, the only other USB device I had connected was the printer & that was switched off...
I'll try the USB stick in Linux to check if it's a hardware thing...
|
|
|
|
|
30-09-2006, 11:52
|
#5
|
|
cf.mega poster
Join Date: Dec 2003
Location: Baw deep in a munter
Age: 49
Services: Initiations, rep rigging and orgies!
Posts: 5,750
|
Re: USB pen drive interferes with wireless NIC?
Quote:
Originally Posted by Cobbydaler
The NIC's a PCI card, the only other USB device I had connected was the printer & that was switched off...
I'll try the USB stick in Linux to check if it's a hardware thing...
|
Doh, my bad, missed that in your first post...
Sorry then - not ideas mate, good luck.
|
|
|
|
|
30-09-2006, 12:22
|
#6
|
|
Inactive
Join Date: Apr 2006
Location: Manchester, UK
Services: ClearFibre Internet, Vodafone mobile Google Pixel 4
Posts: 9,699
|
Re: USB pen drive interferes with wireless NIC?
Quote:
Originally Posted by pop80_uk
Maybe the USB host controller is malfunctioning?
Possibly?
|
Tried it in Linux & connection is rock solid with the USB stick in the same port...
This is very strange!
|
|
|
|
|
30-09-2006, 12:33
|
#7
|
|
Guest
|
Re: USB pen drive interferes with wireless NIC?
irq conflict? does this happen if you use a different usb port maybe on a different hub ie rear of case instead of front
|
|
|
|
|
30-09-2006, 14:10
|
#8
|
|
Inactive
Join Date: Apr 2006
Location: Manchester, UK
Services: ClearFibre Internet, Vodafone mobile Google Pixel 4
Posts: 9,699
|
Re: USB pen drive interferes with wireless NIC?
I don't have any USB ports connected at the front, but plugging into an alternative port at the back gives the same problem.
Two USB controllers show in Device Manager, one generic & one Via. Both use IRQ 21 while the NIC is on IRQ 17...
|
|
|
|
|
30-09-2006, 14:46
|
#9
|
|
-
Join Date: Jul 2003
Location: Poole, Dorset
Age: 40
Services: FreeSat+
Tivo
V-Box
VM 60MBit
Posts: 13,365
|
Re: USB pen drive interferes with wireless NIC?
Quote:
Originally Posted by zinglebarb
irq conflict? does this happen if you use a different usb port maybe on a different hub ie rear of case instead of front
|
IRQ Conflict... On Windows XP...?
|
|
|
|
|
30-09-2006, 20:26
|
#10
|
|
cf.mega poster
Join Date: Jul 2004
Location: chavvy Nottingham
Age: 41
Services: Freeview, Sky+, 100 Mb/s VM BB, mega i7 PC, iPhone 13, Macbook Air
Posts: 7,413
|
Re: USB pen drive interferes with wireless NIC?
Quote:
Originally Posted by Zeph
IRQ Conflict... On Windows XP...?
|
Yeah?
It depends on what HAL you use i think. But the architecture still only allows a maximum IRQ of 15. All >15 are virtual and map originally back to the 1-15.
This is the main reason why I still prefer to set the ACPI PC HAL not the Acpi Uniprocessor one. (Use of, or otherwise, virtual IRQs)
|
|
|
|
|
30-09-2006, 21:10
|
#11
|
|
Inactive
Join Date: Apr 2006
Location: Manchester, UK
Services: ClearFibre Internet, Vodafone mobile Google Pixel 4
Posts: 9,699
|
Re: USB pen drive interferes with wireless NIC?
Is there any way of seeing what they map back to, so I can check if there's a conflict?
|
|
|
|
|
30-09-2006, 22:31
|
#12
|
|
cf.mega poster
Join Date: Jul 2004
Location: chavvy Nottingham
Age: 41
Services: Freeview, Sky+, 100 Mb/s VM BB, mega i7 PC, iPhone 13, Macbook Air
Posts: 7,413
|
Re: USB pen drive interferes with wireless NIC?
You could always check the BIOS? Other than that it's the OS that defines the vIRQs so i'm not entirely sure.
Having a look around they seem to usually map back to 9, 11 or both.
http://support.microsoft.com/kb/q170922/
http://support.microsoft.com/kb/314068/EN-US/
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT +1. The time now is 10:41.
|
Join CF
You are here: 
