Question about Intel 3945ABG (WM3945AGM1WB) 802.11a/g/b Wireless Adapter

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No longer being assigned a valid IP address by routers


I've used my Intel 3945ABG wireless adapter for a year without issues. However, I've recently encountered problems and I can no longer use my wireless connection.

I'm on a Windows XP system laptop and it has always connected to the right network. However, within the new year, my IP always ends up being assigned as, which isn't right. The Intel wireless troubleshooter has several logs stating

"A potential problem with the 802.1x supplicant was detected. The current connection is broken."

Does this sound like a driver problem? A hardware issue? I don't remember changing any settings and I don't think I disabled any related services, so I don't think it's software related. Firewalls are not the problem either.

Any help would be appreciated. I haven't found anyone else with this problem.

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3 Suggested Answers

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SOURCE: Intel 3945ABG 802.11a/g/b Wireless Adapter Problem

look in your routers settings and see if there is an idle time setting and set this to '0'

Posted on Feb 14, 2007

  • 827 Answers

SOURCE: Vista Wireless Problem: Intel Pro/Wireless 3945ABG

Hi Pete,

You sound like you know what you're doing, so forgive me if these suggestions seem foolish or patronising..
Does your laptop have a wireless button?

When you go to Internet Options and click the Connections tab, have you checked 'Never Dial a Connection'? This is essential..
I have exactly the same ethernet card and network adaptor, but haven't had any problems, and we have 2 laptops and 2 pc's here all detecting our router okay so..
It's definitely not MAC filtering on the router, as you would still see the network in your list..
I can only suggest uninstalling the Intel Pro Wireless driver and downloading a fresh one from here.
That'll reset default settings at least..
Hope this helps
Let me know how you get on.. If I face this problem I want to know how to fix it too!

Chris (ziraffa)

Posted on Dec 27, 2008

  • 25 Answers

SOURCE: cannot connect wireless

My best suggestion is not to use the Intel wireless manager. Please go into the wireless manager and take off the "check mark" where it says the Intel Manager manages the wireless card.  This will disable the Intel wireless manager from managing your wireless card and give control back to Windows.
-Right-click "Recycle Bin" and choose "Explore"
-Right-click "My Network Places" and choose "Properties"
-Right-click on wireless network (should only be 1, maybe 2) and choose "View available wireless networks"
-Click on the wireless name from the list that belongs to your office Access point.
-If it needs a key, enter the key when prompted (it will ask you to enter it twice, one for each line).
-Once you complete this step, you should have wireless access once again.
-Intel will keep prompting you if you'd like for it to manager your wireless, I suggest you ignore this message from this point forward and only use the Windows wireless manager (built-into all Windows OS). :)

Posted on Jun 29, 2009

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Intel 3945ABG 802.11a/g/b Wireless Adapter Problem

look in your routers settings and see if there is an idle time setting and set this to '0'

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