Vulture;679933 Wrote:
> I have a NETGEAR WN121T wireless-N USB 2.0 adapter which has always
> failed upon resume from sleep using a wireless connection, but not when
> using
> a wired Ethernet connection. It also works perfectly via wireless
> connection
> with my NETGEAR DG834N draft 802.11n (and another 802.11g) wireless
> modem/router on Windows Vista Ultimate - both with and without the SP1
> Release Candidate - from boot, but has always failed upon resume from
> sleep:
> attempting to re-connect to the network fails, and Device Manager
> reports
> that “Windows has stopped this device because it has reported
> problems (code
> 43)”. The only remedy is to reboot.
> The consequences of this are twofold: firstly, Microsoft-recommended
> sleep
> mode is consequently irrelevant as a reboot is necessary anyway to
> re-establish the wireless connection; secondly, as no wireless
> connection
> appears to be maintained during sleep, Windows Update, backup and other
> important maintenance cannot be performed during sleep.
> The relevant Vista system settings are ReadyBoost active with 1860MB,
> WN121T power setting “Allow the computer to turn off this device to
> save
> power” is unchecked (i.e. blank), and power plan settings are
> wireless
> adapter power saving mode is “maximum performance”, allow hybrid
> sleep is
> “on” and hibernate is “never”. All drivers have always been the
> latest
> (fails with drivers both from Microsoft and NETGEAR).
> (Non-relevant factors would appear to include that the motherboard has
> no
> disks directly attached (the 1TB of RAID10 disk storage is provided via
> an
> OEM h/w upgrade to an LSI 8308ELP MegaRAID board), as the failure also
> occurred prior to this upgrade – albeit prior to SP1 and with the
> then
> drivers available in July 2007.)
> It seems clear that this issue is either a general failure in Microsoft
> sleep functionality for wireless networks, or a specific issue in the
> NETGEAR
> WN121T drivers whereby they do not accommodate the Microsoft sleep
> functionality. Either way, it would seem a NETGEAR driver v, Microsoft
> sleep
> functionality issue.
> This issue has been repeatedly reported to Microsoft for some 6 months
> via
> Problems & Solutions and more recently via the SP1 Release Candidate
> reporting facility, all without resolution.
> Can YOU help? Do you know of any remedies? Can I help you? Have you
> experienced any wireless adapter failures only after sleep on Vista
> (regardless of adapter)? Have you experienced any NETGEAR WN121T
> wireless
> adapter failures only after sleep on Vista? If so, have you reported
> them?
> If so, to whom - and what response did you get?
>
> --
> Vultch
I realise this is over a year since a reply on this thread, but I had
very similar issues on my Vista x64 PC with a Netgear Rangemax WN111
wireless USB adapter. When the PC entered S3 sleep mode, the wireless
adapter lost connection every time.
Not sure if this will work on all PCs/network adapters, but what worked
for me was the following:
1. Go into Start > Control Panel > Hardware and Sound > Device Manager
2. Accept UAC message
3. Find the wireless network adapter under the Network adapter section
and right-click it, then select Properties
4. Click on the Advanced tab
5. Scroll down to and click the Tx Power Level option
My (and probably the default) setting was on 'High Power'. I changed
this to 'Medium Power', pressed OK and waited for the adapter to
reconnect.
I haven't had any wireless dropout problems since, after the PC enters
sleep mode.
I am not sure if this will affect performance for other users (I'm
guessing that Tx power level is the transmit level to the router), but
it is working well for me. My router is about 6m away with 2 walls,
timber furniture and metal cabinets in between.
The other thing I noticed is the blue light on the adapter (indicating
connection/activity) now stays on during sleep mode (not blinking, just
on all the time). Before it used to glow very faintly.
I can only put this down to the USB port not supplying eough power to
the adapter when it goes into sleep mode. I have an Antec Earthwatts 500
power supply and a Gigabyte GA-MA78GM-S2HP mobo, both of which support
S3 sleep. All other USB devices work fine during sleep and resume
correctly without any problems.
I hope this information can help others solve wireless connection
issues when a PC enters sleep mode.
mke68.
--
mke68
Posted via
http://www.vistaheads.com
Similar Threads
Linear Mode
