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Broadcom BCM5705 Network Adapter
Problem for Broadcom BCM5705 (BCM5705KFB) Network Adapter

The capability of your network adapter does not match the requirements of the network




By aradtke on Aug 18, 2007

" "
I am sporatically losing connection to my network with the following message:

"The capability of your network adapter does not match the requirements of the network."

I am running Vista on a HP Pavilion DV6449 with a AMD dual core TL-56 processor..

I am using a D-LINK WBR-1310 router and a Broadcom 4321 AG a/b/g/n adapter card in my laptop.

Any ideas?
Comments:

Aug 18, 2007

- Thanks for responding so quickly.

Using Device Manager and with the advice of HP Customer Support I changed the IBSS Mode property for my Broadcom 4321AG 802.11a/b/g/draft-n Wi-Fi Adapter to "54g". I also tried changing it to "802.11 a/b/g/n auto". I also changed my WZC IBSS Channel Number property to 6 to match the D-Link WBR-1310 router.

However, I am still experiencing the same problem.

After further testing and observation, it seems the connection problem only occurs after my laptop awakens from sleep mode but not every time - perhaps half the time.

For those times that it does work, after awakening from sleep mode it takes about 30 seconds to one minute for the wireless network adapter card to finally recognize my network. That seems a little bit too long to me.

For those times that it does not work, sometimes it dosen't even recognize that my network exists. Other times it says that it has connected but IE cannot find any pages. Still other times the following message appears in the network list:

"The capability of your network adapter does not match the requirements of the network."

Do you think perhaps the broadcom wireless adapter card is malfunctioning after awakening from sleep mode?

Aug 18, 2007

- Thanks for responding so quickly.

Using Device Manager and with the advice of HP Customer Support I changed the IBSS Mode property for my Broadcom 4321AG 802.11a/b/g/draft-n Wi-Fi Adapter to "54g". I also tried changing it to "802.11 a/b/g/n auto". I also changed my WZC IBSS Channel Number property to 6 to match the D-Link WBR-1310 router.

However, I am still experiencing the same problem.

After further testing and observation, it seems the connection problem only occurs after my laptop awakens from sleep mode but not every time - perhaps half the time.

For those times that it does work, after awakening from sleep mode it takes about 30 seconds to one minute for the wireless network adapter card to finally recognize my network. That seems a little bit too long to me.

For those times that it does not work, sometimes it dosen't even recognize that my network exists. Other times it says that it has connected but IE cannot find any pages. Still other times the following message appears in the network list:

"The capability of your network adapter does not match the requirements of the network."

Do you think perhaps the broadcom wireless adapter card is malfunctioning after awakening from sleep mode?

Aug 18, 2007

- Thanks for responding.

With HP Customer Support advice and assistance I tried most of the things you mentioned. I tried turning off router encryption as well as Norton firewall but no difference.

My device properties are:
minimum power sonsumption: enabled
power output: 100%
band preference: none
afterburner: disabled
IBSS 54g protection mode: auto

My adapter card is the Broadcom 4321AG 802.11a/b/g/draft-n Wi-Fi Adapter. I don't know how to tell the model # if it is different than that. Its driver is up to date.

I am about ready to take this laptop back to Circuit City and ask for a replacement since it is only 5 days old. Or ask them to replace the adapter card.
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Same Problem

Apr 21, 2009

-   my laptop mt6451 gateway , does work wireless properly ,something is on others off , i been try changing ip address , still does work , i gues i miss wireless adapter configuration , exist some link where a can donwloand a update configuration, and make work ? -   buffon

Feb 06, 2009

-   same thing using a belkin n wireless usb adapter-   Guest

Dec 03, 2008

-   I have the same, for me looks like this is a WI-FI card issue, however since I haven't try using a diferent one I do not know for sure.
My HP Pavillion DV6xxx with a Broadcom 4321AG 802.11a/b/g/draft-n, discovers WLANs when it wants, I am using a Linksys router and using the same network my brother's laptop works as a charm... So, definately the network is working, but the PC is not getting it.
HP customer server does not provide a real solution, upgrading the BIOS or getting it back its defaults and also playing with the drivers does not change anything.
I notice that only when the PC finds WLANs the WLAN card is showing on the hardware management list.
Any ideas????-   asolcayo

Dec 03, 2008

-   I have the same, for me looks like this is a WI-FI card issue, however seems I haven't try using a diferent one I do not know for sure.
My HP Pavillion DV6xxx with a Broadcom 4321AG 802.11a/b/g/draft-n, discovers WLANs when it whants, I am using a Linksys router and using the same network my brother's laptop works as a charm... So, definately the network is working, but the PC is not getting it.
HP customer server does not provide a real solution, upgrading the BIOS or getting it back its defaults and also playing with the drivers does not change anything.
I notice that only when the PC finds WLANs the WLAN card is showing on the hardware management list.
Any ideas????-   Guest

Nov 15, 2008

-   I have the same problem as listed above. But rebooting doesn't solve the issue at all. I even restored my computer bc the tech at Circuit City suggested it. Then they suggested it was bc my laptop was too distant from my wireless-n router, even though my older desktop picks up the signal fine, and so does my xbox 360. Then they suggested it was an issue with my home network, but that can't be because the laptop won't connect to any network ever. Home, school, work. -   aldana

Best Solution

posted on Mar 31, 2008
Helpful)

JumpingFox
JumpingFox

Rank: Apprentice 
Rating: 92%, 9 votes
I was having the same problem with my Dell laptop and Netopia wireless router at home (Windows Vista Business), every so often the laptop was unable to pick up the wireless network. I had an identical router at work and no such problem was ever occuring.
Using the Dell Wireless WLAN Card Utility on my laptop, (Site Monitor Tab), I discovered that another router was broadcasting on the same channel, similar signal strength, I changed the default channel number on the router. This solved the problem.

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Solution #2

posted on Aug 18, 2007
Somewhat Helpful)

Benimur
Benimur Expert Moderator

Rank: Guru 
Rating: 88%, 3820 votes
Hi,
Your D-Link Wireless G Router (WBR-1310)is based on the 802.11g standard (backward compatible with 802.11b) whereas your adapter card in your laptop uses a Broadcom 4321 AG chipset designed for a/b/g/n. The letters a/b/g/n represent claimed/ideal speed based on the IEEE 802.11 standards:
a - 54 Mbit/s
b - 11 Mbit/s
g - 54 Mbit/s
n - 108 Mbit/s to 200+ Mbit/s.
So your AP/Router designed/default/max speed is g while your network adaptor designed/default/max speed is n. What happens is your network card auto downshifts to match your router but from time to time checks if it can shift up to n speed and that's when you loose connection. Two things you can try:
1. Manually select speed of your network card to match your router @ g; or
2. Change your AP/Router to newer model with n capability such as the LinkSys WRT300N.
It might also be worth your while to check your WEP, WPA or MAC permissions on both.
Hope the above give you some ideas and work out for you. Pls post back how things turn up or if you need add info. Good luck and kind regards.
Comments:

Aug 18, 2007

- Hi again,
Based on your recent post/description, it would seem that we really ought to focus on the settings. A couple of other things we can try, but since I've given up running Vista & have switched back to XP Pro, you may have to wing it as the below details would be in XP terms:
1. In Device Manager/Networking Adapters> Power Save Mode to OFF (or if I remember it right in Vista, when using the AC power, this setting is auto switched to OFF); SSID to ANY; Power Management uncheck "Allow the computer to turn off this device to save power"; and/or
2. As advised by HP Customer Support maintain IBSS Mode property of the Broadcom 4321AG 802.11a/b/g/draft-n Wi-Fi Adapter to "54g"; and/or
3. Try turning OFF your WEP, WPA or MAC Filter (or whatever you're using on both router and card settings)) just to determine if it is security related.
4. Might as well check your firewall (not likely but a possibility)
With the above, use your PC normally and let it sleep and check if there is any change.
A similar problem with a laptop in my network, a Sony Vaio, if I use the built-in XP wifi connection configuration, doesn't work. I installed NetStumbler and I can see the AP/Router. I installed the wifi card's manufacturer Smart Wizard/Utility to configure and it works without a hitch.
If by chance you have access to an older card (not an N), try using it just to verify if it is really the Broadcom wireless adapter card acting up.
BTW what's the specific model # of the wifi card - BMC????

Aug 18, 2007

- I understand. This might sound familiar to you > http://forums.techguy.org/windows-vista/...
and with link to http://www.pctipsbox.com/connectivity-an...
For all intents and purposes, looks like your best bet is to have the unit replace + the wifi card and have it tested at Circuit City. Allow it to sleep a couple of times just to make sure the same doesn't happen again.
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Solution #3

posted on May 03, 2008
Not Helpful)

Guest
Guest

Rank: Apprentice 
Rating: 0%, 0 votes
what what in my ****

Solution #4

posted on Dec 16, 2007
Helpful)

johnjohnson
johnjohnson

Rank: Apprentice 
Rating: 94%, 4 votes
Here is how I fixed this issue for my Vista wireless network adapter.
1. Open device manager in the control panel
2. Expand "Network Adapters"
3. Double click your wireless network adapter
4. Click the "driver" tab
5. Click "Roll back Driver" and let it run

Thanks www.jcjsystems.com
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3 people thought this was helpful

Solution #5

posted on Jan 07, 2009
Somewhat Helpful)

kinnlm
kinnlm

Rank: Apprentice 
Rating: 79%, 4 votes
By the looks of it your Internet is type D while your network is only supposed to be able pick up A B G N the fact that you receive Internet in the first place is beyond me but stuff like that happens a lot. Maybe because it can retro receive to a certain extent.
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Solution #6

posted on Sep 17, 2008
Not Rated)

AIRFORCE1098
AIRFORCE1098

Rank: Apprentice 
Rating: 0%, 0 votes
I have same. I have 2 of the same kind side by side. ONE WORKS FINE AND THE OTHER WORKS ONCE IN A WHILE. The only difference is that the bad one has a great deal of music in memory while the good one has nothing added. Could it be a memory problem?
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Solution #7

posted on Aug 23, 2007
Not Rated)

Guest
Guest

Rank: Apprentice 
Rating: 0%, 0 votes
Hi guys,
I have exactly the same package from Circuit City and noticed the same problem. What happens is the router reboots! You can see that in the routers STATUS -> LOG. It takes about one minute from the system restarted message until WLAN authentification is successfully completed.

My remedy:
Disable Auto Channel Scan under SETUP -> WIRELESS SETTINGS. Assign one fixed channel.
Sometimes when the PC wakes up and reconnects
the router selects a new channel and therefore reboots.
All the other settings mentioned above you can leave as they are.

BTW: netstumbler doesn't seem to support the Broadcom 4321. Does anyone has another monitoring solution?

I hope this will also work for you.
passing-by-visito

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7 Other Users Have The Same Problem - Continued

Comment by mwald, posted on Oct 19, 2008

I have the same (or I should say a similar) problem. I will suddenly lose connection (no relation to sleep mode). I may even be in the middle of a download. When I go in to reconnect to a network, it shows no networks available . . . even though many are available. It will not list a single one. Disabling/re-enabling the device does not help. Rebooting fixes the problem 100% of the time.

Comment by Guest, posted on Apr 19, 2008

I have the same problem on a HP tx1320us with a broadcom 4321ag card. Sporadically after resuming from sleep/standby, the wireless AND wired network will only partially connect. It says "local connectivity only". The DHCP does not renew, and it shows an IP of 169.x.x.x Trying a DHCP renew just gives an error. Rebooting fixes this 100% of the time.

Hp tech support gave up after 2 emails and wants to replace my motherboard, but I really don't think this is the problem (I'm a network admin) and dont want to take the risks of sending the system back to them.
This is so frustrating because many, many people are having this problem, and all the vendors are denying that it exists.

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