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Using 802.1 cannot get an IP address on my Notebook

Last Modified: 2013-11-09
IAS on a W3K Server with SP2
Using WEP and
Using an IAS server and Zxyel G-1000 V2 Access points I can authenticate to the IAS server See below:

"Event Type:      Information
Event Source:      IAS
Event Category:      None
Event ID:      1
Date:            10/12/2007
Time:            18:13:31
User:            N/A
Computer:      ServerName
User host/CHD-NB.Domain.local was granted access.
 Fully-Qualified-User-Name = <undetermined>
 NAS-IP-Address =
 NAS-Identifier = ZyXEL8686
 Client-Friendly-Name = Test
 Client-IP-Address =
 Calling-Station-Identifier = 00-16-a0-76-da-d2
 NAS-Port-Type = Wireless - IEEE 802.11
 NAS-Port = <not present>
 Proxy-Policy-Name = Use Windows authentication for all users
 Authentication-Provider = <none>
 Authentication-Server = <undetermined>
 Policy-Name = <undetermined>
 Authentication-Type = <undetermined> "

This allows the notebook to connect to the access point but I do not get an IP address.
If I remove all security from the Access Point then it connects and gets an address.

The logs show on the  ZyXel that it has connected.
The firewall is off.
I have been trying to rectify this for 2 days now and am running out of configurations to try.
Help will be very much accepted

Watch Question


I think you ahve narrowed down the scope of the problem ... a security feature on the access point.  Typically you will see this if the WEP encryption or MAC address filter is not allowing the client to communicate through the device.

If all of that is correct see if there is a firmware update for the access point, there could be something in the security features that is not compatible with the card that a firmware update might resolve.


I have checked for firmware updates - the are of a 2006 variety and are installed.
Remove security allows a IP so this may be the case but further if I configure for a manual connection using WPA it works.
Head Hurting now!!!!!
Top Expert 2007

I would try a different Access Point devce. SOme are better than others, and compatibility is an issue sometimes.

I hope this helps !


Just tried another make but still the same. It must be something I have either done or overlooked?
Top Expert 2007

Maybe you need to point

 Authentication-Provider = <none>   to somethng for authentification ?
This one is on us!
(Get your first solution completely free - no credit card required)


I have tried various notebooks. The option to change settings as a user are none so this need to be done with GPO's. I and going to undo all I have done and try again. I has got to be to do with the IAS service somewhere or certificates but I can see the certificates on the Notebook issues by the GPO.



The isssue still remains and I am activly trying to resolve this but will close the question for now. I will publish tha answer when found. Thank you everyone.

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