Wireless Networks Thread, Laptops failing to authenticate in Technical; Hi,
Ever since our CISCO wireless kit was installed we seem to be having a problem with laptops failing to ...
28th May 2013, 01:02 PM #1
Laptops failing to authenticate
Ever since our CISCO wireless kit was installed we seem to be having a problem with laptops failing to authenticate seemingly at random. I'll try to explain the setup: -
CISCO APs (enterprise level Kit)
CISCO controlers and Radius server remotely located in LEA on adifferent domain working across a trust to us for LDAP queries.
Laptops configured to use PEAP authentication with computer information.
Laptops using 11g only with win XP
When I ask the network guys at county for the error messages it seems the LDAP query is timing out.
This continues until I plug the laptop into a wired connection and log onto the domain then it seems to find the laptop and everything works for a while then the same happens again.
I've just come back from some time away to find 8 of our science laptops in this state - just reconnecting them to the domain seems to remind the server that they are still around.
28th May 2013, 02:02 PM #2
This is the error message from the radius server.
Most Recent Authentication
May 28,2013 1:11:40.333 PM
24485 Machine authentication against Active Directory has failed because of wrong password. : EAP session timed out
1st June 2013, 10:06 AM #3
- Rep Power
There's a bug in the XP that stops it from updating the machine password over wifi, it needs to be plugged into a wired connection. This was fixed in Win7.
KB article below
Last edited by paulfinlay; 1st June 2013 at 10:09 AM.
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