Heavy CPU usage when Wifi Network is on

[vickyarora]

I have a really strange problem here. I recently upgraded to wifi with a LevelOne WBR- 3406TX router and an Airlink AWL4130 Super G PCI card in my desktop setup. All seems to work fine. I get good upload / download speeds, however, I notice that the CPU utilization is constantly high (80%-100%) when the wireless card is turned on. As soon as I disconnect from the network, the usage drops to 0%. I am using ZoneAlarm as my firewall and turning it off/on makes no difference, so I know this is not a problem.
Using my laptop on the network poses no such issues, so it must be my desktop!

My computer is an Athlon 64 3200+ on an Asus A8V motherboard (Soc 939 and latest bios) with 1gb Crucial RAM.
Help!

 

[jlazzaro]

XP or Vista? Did you load the drivers from the CD or get the newest ones from their website?

 

[vickyarora]

XP Pro Sp2.. drivers are from the CD .. (Website does not have it yet / )

http://www.airlink101.com/downloads/awlh4130.html

 

[vickyarora]

Text
please see attachment.. still strugling with this..

 

[jlazzaro]

go to the processes tab and sort by CPU...which process ranks highest?

 

[vickyarora]

Please see page 2 and 4 of the attachment. The only "active" are the "System Idle Process"

 

[vickyarora]

downloaded Processxp.. Hardware interupts range from 13% - 30% of CPU time and DPCs (Deferred Procedure Calls) about 35% to 60%. Seems high to me..
1) What is the normal util% for these processes? ( I am running a Ahtlon 64 3200+)
2) What can be causing this ?
Many thanks, V.

 

[Nothinman]

DPCs are used by drivers to handle interrupts, sounds like you have a crap driver. Go figure.