Re: Wireless Connection lost after hibernation

Hi
Make sure that the power saving in the Wireless drivers is not checked On.
Check the computer BIOS to see if you can take the Network out of the
StandBy list of devices..
Jack (MVP-Networking).

"John" <> wrote in message
news:38D88FDC-69A6-4CCD-A5B8-...
>I have an ACER Aspire 5040 laptop with an Atheros AR5005G wireless network
> adapter. If the laptop hibernates for more than a few minutes the wireless
> connection is lost on resumption. The dialogue box that shows available
> networks is blank and the refresh network list does not produce a new
> list.
> Everything returns to normal if the laptop is restarted.
>
> This seems to be a common problem with various suggested solutions.
> Microsoft article 328647 suggests disabling and then enablng the wireless
> network connection. This does not solve the problem. Others suggest a .bat
> file with
>
> ipconfig /release_all
> ipconfig /renew_all
>
> This does not work either.
>
> Does any one have a solution that avoids a reboot?
>
> Thanks
>

Jack \(MVP-Networking\).

Hi
In term of pure standard, there are two forms of functioning related to this
issue.
1. Standby - The computer stays On, but reduces the power to certain
components (like the CPU), and switches Off others (like the screen, and the
Hard Drive).
2. Hibernation - This function has nothing to do with Standby. If one
chooses to Hibernate, the computer is Totally Switched Off, but before going
down it saves the content of the volatile RAM to the hard drive. When the
computer is Switched On, it loads upon boot the file back to the RAM, and
the computer is restored to the state that it was before (I.e. all programs
and information that was kept in RAM comes back open).
With the dire need to save battery on Laptops, many manufacturer developed
concoctions of propriety software, and BIOS setting that are a combination
of the above. I.e. some things are reduce in power consumption, and some
info from RAM is stored in hidden files on the Hard Drive. I saw numerous
amounts of time Wireless disturbances due to these concoctions. In most
cases the ipconfig release/renew does the trick to revive the Wireless.
However on some computers when the computer coming out of
Standby/Hibernation the drivers actually think that there is No Wireless
card any more. Switching Off and On resets the settings, and the Wireless
starts it again.
If your Wireless is factory installed, "lean" on Acer, they should made
aware of the situation and offer a solution. If you are using a PCMCIA
card, try a card from another Manufacturer, or a USB Wireless Card.
Jack (MVP-Networking).

"John" <> wrote in message
news:1136EFA2-57DC-4FD9-BA02-...
> Sadly there is no list of devices that can be allowed to standby in the
> bios.
> I have also checked the power saving in the wireless driver and unlike the
> wired network adaptor there is no option to turn the device on or off.
>
> Thanks for your suggestions but no success yet
>
> John
>
> "Jack (MVP-Networking)." wrote:
>
>> Hi
>> Make sure that the power saving in the Wireless drivers is not checked
>> On.
>> Check the computer BIOS to see if you can take the Network out of the
>> StandBy list of devices..
>> Jack (MVP-Networking).
>>
>> "John" <> wrote in message
>> news:38D88FDC-69A6-4CCD-A5B8-...
>> >I have an ACER Aspire 5040 laptop with an Atheros AR5005G wireless
>> >network
>> > adapter. If the laptop hibernates for more than a few minutes the
>> > wireless
>> > connection is lost on resumption. The dialogue box that shows available
>> > networks is blank and the refresh network list does not produce a new
>> > list.
>> > Everything returns to normal if the laptop is restarted.
>> >
>> > This seems to be a common problem with various suggested solutions.
>> > Microsoft article 328647 suggests disabling and then enablng the
>> > wireless
>> > network connection. This does not solve the problem. Others suggest a
>> > .bat
>> > file with
>> >
>> > ipconfig /release_all
>> > ipconfig /renew_all
>> >
>> > This does not work either.
>> >
>> > Does any one have a solution that avoids a reboot?
>> >
>> > Thanks
>> >
>>
>>
>>

Jack \(MVP-Networking\).

"John" <> wrote in message news:1136EFA2-57DC-4FD9-BA02-...
> Sadly there is no list of devices that can be allowed to standby in the bios.

AFAIK there is no such user accessible setting in normal modern BIOSes.
(some platforms may have this feature, but it's unlikely that you have it)

> I have also checked the power saving in the wireless driver and unlike the
> wired network adaptor there is no option to turn the device on or off.

This looks like a bug in the driver, or maybe the BIOS.

Regards,
--PA

Pavel A.