Webuser Forums: Wireless network interface disabled

The "Wireless network interface" on my laptop is disabled and I can't find out how to enable it again. I didn't do anything to it, it just went like it. I have an Acer Aspire 3620, the wireless network is enabled. The Atheros Client Utility tray icon is gray and crossed, I can't enable most functions and the troubleshooting says that Radio test failed. The report is:

Atheros Troubleshooting Utility
Troubleshooter report...
Report date: Friday, November 16, 2007

Name: Driver installation test
Description: This test is to check the radio driver installation.
The radio's registry keys are OK.
Nic name. . . . . . . . . : Atheros AR5005G Wireless Network Adapter
Driver name . . . . . . . : Atheros AR5005G Wireless Network Adapter (Microsoft's Packet Scheduler)
Driver path . . . . . . . : C:\WINDOWS\system32\DRIVERS\ar5211.sys
Driver version. . . . . . : 4.0.0.14001
Active Profile Name . . : Default
Test Done: The radio driver has been installed.

Name: Card insertion test
Description: This test is to check the radio insertion.
Test Done: The radio has been inserted.

Name: Card enable test
Description: This test is to check if the radio/driver is enabled.
Test Done: The radio has been enabled.

Name: Radio test
Description: This test is to check if the radio is turned on.
Test Failure: The radio is not on
Solution: Enable the radio, by ACU

Test not completed.

I use Win XP.
If someone can help me, I'd appreciate it...

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