A timeout occurred while waiting for the EHCI host controller Asynchronous Schedule to transition to the enabled state.

Anonymous

When I'm using my computer running Windows 8 Pro x64 randomly all of the USB's will freeze up, yet the PC will still run fine. Then they will all come back online a little while later.

By online my WiFi adapter doesn't seem to re-initiate.

Checking the events log I see a flurry of the following error.

"A timeout occurred while waiting for the EHCI host controller Asynchronous Schedule to transition to the enabled state."

Thanks,

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Anonymous

Those of you with USB WiFi adapters based on Atheros AR9271 chips (TP-Link WN722N, Netgear WNA1100 etc.) might want to try this.

I found a driver in the windows update catalog that is newer (version 2.0.0.49) than the one offered by windows update (2.0.0.32) that seems to have cured all the WiFi drops I was getting under heavy network load.

Atheros AR9271 Driver x64

You'll have to extract the .cab(inet) archive and then do a manual driver install (right click the adapter in device manager, update drivers and then pick the location manually, point it to where you unpacked the driver, from the 'have disk' dialog)

I have been running this for over a month and have not had any network specific drops since. Now, if I could only find a fix for the joystick drops in FSX...sigh

Notice, this is the 64bit driver, I cannot comment on the x86 driver one way or the other.

Also, if you are already running version 2.0.0.49 of the driver and still have problems, obviously this won't help you.

Hope this helps someone, best of luck.

Much thanks，this REALLY helps on tplink W822N

Problem solved~~~

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43 additional answers

Anonymous

2012-11-18T19:56:45+00:00

Hi, I have the same problem.

Asus formula IV motherboar

AMD 1075 processor.

Evething restart except a wireless adaptor a MSI US300EX .

I.ve done a system restoration to the day before the erro appears i hope it help.
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Anonymous

2012-11-17T20:10:15+00:00

Hi All,

I have very similar issue:

Log Name: System

Source: usbehci

Date: 2012-11-17 20:52:11

Event ID: 4

Task Category: None

Level: Error

Keywords: Classic

User: N/A

Computer: Computer

Description:

A timeout occurred while waiting for the EHCI host controller Interrupt on Async Advance Doorbell response.

I found that this error is mostly followed or preceded by:

Log Name: System

Source: Microsoft-Windows-WLAN-AutoConfig

Date: 2012-11-17 20:52:20

Event ID: 10000

Task Category: None

Level: Error

Keywords:

User: SYSTEM

Computer: Computer

Description:

WLAN Extensibility Module has failed to start.

Module Path: C:\Windows\system32\athExt.dll

Error Code: 126

What kind/model of Wi-Fi adapter do you use...??

BR,

Greg
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Anonymous

2012-11-02T14:56:26+00:00

I seem to have the same issue ever since I installed Windows 8 x64 Enterprise Edition.

Log Name: System

Source: usbehci

Date: 02-11-2012 20:20:45

Event ID: 4

Task Category: None

Level: Error

Keywords: Classic

User: N/A

Description:

A timeout occurred while waiting for the EHCI host controller Interrupt on Async Advance Doorbell response.

Every USB component gets reinitialized. Its starting to bother me now. I tried searching for a hotfix but there are none so far ( I guess).

Any resolution is greatly appreciated.
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