Windows clients do not automatically detect which protocol is being used for authentication to connect to Wifi.

Posted on 2011-02-16
Last Modified: 2012-05-11
We have Win XP SP3 & Win 7 clients.
We have Cisco Access point using 802.1x Authentication.
IAS Server

When a user tries to join the Wireless network the following error comes up:

"Windows was unable to find a certificate to log you on to the network...."

I have tried starting the Wired AutoConfig service, however nothing worked.

Also when on XP I go to Wireless Connections>Advanced Properties> Authentication> the following settings are enabled:
 Screenshot 1 Screenshot 1
 Screenshot 2
Question by:Ackles
  • 2
  • 2
LVL 30

Expert Comment

ID: 34912396
Do you have a radius server?
LVL 11

Author Comment

ID: 34912401
LVL 30

Accepted Solution

pgm554 earned 500 total points
ID: 34912434

In Windows server before 2008,you should use IAS,after that NPS.
LVL 21

Expert Comment

ID: 34916383
Did you install the certificate for the WiFi on the client machine?  
Is the Root CA trusted for this certificate?
LVL 11

Author Comment

ID: 34916830
I am out of office till Tuesday.
Sorry, but only after that I will be able to answer any question...

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Best way to share an MFP laser printer? 5 60
Etherchannel trunking 10 41
cradle point vpn to sonicwall 5 49
Unknown security group 2 59
This article offers some helpful and general tips for safe browsing and online shopping. It offers simple and manageable procedures that help to ensure the safety of one's personal information and the security of any devices.
If you're not part of the solution, you're part of the problem.   Tips on how to secure IoT devices, even the dumbest ones, so they can't be used as part of a DDoS botnet.  Use PRTG Network Monitor as one of the building blocks, to detect unusual…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor ( If you're looking for how to monitor bandwidth using netflow or packet s…

867 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now