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Sony :: VGN-Z21 And Intel 5100 AGN Drops Under Windows 7


I have managed to finally resolve my problems with my Windows 7 installation by redoing the upgrade, everything now seems great and all the original drivers/software (FN buttons etc) are working great. So far, Windows 7 looks great!

One problem I'm noticing and I've also found links on Google of other users complaining about the same is that the Intel 5100 AGN wireless seems to drop quite often. This never happened under Vista.

I use IRC quite a lot, and it's so frustrating with my Internet constantly dropping. Other laptops connected to the same AP (NETGEAR WNR2000) do not encounter this. The drops are extremely brief.


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HP/Compaq :: HP 8530w Intel 5300 AGN Drops Out
I have the HP 8530w and a D-Link DIR-615 wireless router and am trying to make them work together. Using the G speed (54mbit), the network is stable (signal quality is excellent). But when I try the N speed, the situation is different. The network starts working as it should, but when loaded (big files transferred), the network suddenly dies and windows vista can take up to a couple of minutes before it discovers the missing link. During that time, the 5300 AGN still receives packets from the router (10 beacons per second as per setup in the router). But no packets are sent (checking with Intels statistics tool).

So it looks like the Intel 5300 AGN doesn't send any packets all of a sudden OR that the DIR-615 has become temporarily deaf. But disconnecting/reconnecting in vista make the network work right away indicating the problem is with the Intel 5300.

As an ekstra test, I tried having the Asus EeePC 1000H (also has 802.11n draft) transfer the same files while the HP 8530w was and then the network was MUCH more stable. The HP 8530w experienced 1 dropout but the EeePC continued transferring at full speed. Obviously the Intel 5300 AGN has severe problems talking with the DIR-615, problems so big it cannot figure out how to recover normally. :-(

Needless to say, I have tried playing with most settings in the Intel 5300AGN and also with the DIR-615, but without success. The network breaks down, always.

On the plus side, the EeePC 1000H is stable.

I wonder if it is possible to exchange the Intel 5300 in the 8530w with another wireless lan? I'd prefer to have a card that works.

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Sony :: Vaio Z-540 Wireless (Intel 5100 AGN)
I've been using my Sony Vaio Z-540 without a problem for about a YEAR
until recently (about a month?), my wifi has been acting up.

My wireless card is Intel 5100 AGN

The problems are:
1. Sometimes, I do not get wireless from the startup . my wireless isn't even in the Device Manager...

2. When I do get wireless (Device manager confirmed), wifi connection disappears with even the SLIGHTEST MOVEMENT!

3. When I do lose the wireless driver (no more on the device manager), I put it to sleep, wait 5 seconds, wake up, and my vaio detects it. [but this isn't the case for ALL the time, sometimes I have to restart the vaio]

I thought it was a loose wire or loose card, so I opened it. The wireless card is bolted down with 2 screws. So i put everything back and it still has the SAME issue.

Also, I've updated the Intel 5100 Driver to the latest (When I finally got my Wireless driver seen on the device manager) but still the SAME problem, so I'm back on my OLD driver. still same problem, of course.

when I do have my wifi, my wifi just disappears with the SLIGHTEST MOVEMENT on my laptop. It has to be still...

Ethernet connect, however, works 100%

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What has happened is that since I upgraded to Windows 7 and the new drivers, I get some hitching, rubberbanding in games, slow speeds at times, etc.

Now I know Windows 7 is pretty rock solid and the new drivers came from the HP site.

But when I started googling, seems TONS of people have issues with the 5100 card and maybe I was just lucky before.

At first I noticed my card speed goes from ~50 MBPS to max of 130 MBPS. After reading, it seems even though my router supports 40ghz dual channel yadda yadda, the card only goes to 2.4 so it can't really run at 40ghz is my understanding and that 130 MBPS is pretty much the cap.

That said, it was that way before the Win 7 upgrade so that shouldn't change anything.

One thing I noticed is that in my device driver before the upgrade, it was a normal 5100 but now with the drivers, I see a 5100 AGN.

I can't find how the AGN and non-AGN versions differ?

Could it be I have AGN drivers for a non-AGN card?

Lastly, is this wireless card removable and upgradable or can I use the slot (empty) that I have for another card and disable the wireless 5100 through BIOS?

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However I am still a little picky about the current Z11:

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Short solution for the EFI GDT Problem
//Edit: see VGN-Z Windows 7 x64 Drivers for a better way (with advanced Menu)
(only needed for x64, if you doesnt want to format your disk)

Create 3 folders c:efi-iso c:efi-exe c:efi-dvd

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Extract iso using 7Zip or WinRAR (Or copy the contents of the DVD) into c:efi-dvd

Start up a command prompt (Start -> Run -> cmd)
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