I needed to uncheck that IEEE 802.1 box but it wouldn't show up on WPA for some reason only WEP.I finally got connected with service pack 1 using no protection wireless and upgraded to service pack 2.short and sweet upgrading the wireless ethernet card solved the problems.
He has an Averitec Laptop, and had some broadcom software that was conflicting with the built in Windows software. Three years later and this worked perfectly for me. I'm starting to feel bad getting great tips by doing google searches and not letting people know that their advice actually worked! This thread may be three years old now but the info is still current (Nov 2009).
I removed the broadcom software and uninstalled the wifi drivers, rebooted, and let the windows automagical install take care of things. I just installed a new type of router and suddenly nothing would connect and it kept saying there was no certificate. I had the same problem when I went to uncheck the IEEE 802.1x and it was greyed out.
Visit Stack Exchange We're deploying a wireless networking using Windows Server 2008 NAC as a RADIUS server.
When Windows XP or 7 clients connect they initally fail to connect.
The problem is I have a popup down the bottom right hand corner of the screen saying "Windows was unable to find a certificate to log you on to the network speedstream" I am stumped Thanks for your reply.
Yeh I tried that after doing a google search on the error message.
Now there is no conflict and the thing can connect. I was frustrated until I found this link and it solved my problem. I clicked the Association tab and wrote everything down.
One more thing to try: In the list of available networks, click on Change the order of preferred networks, double click the name of your network in the list (takes you to the properties) and make sure the network key is typed in there. I have the same problem--I get the message about not being able to find a certificate to log on to the network. Wait-a-go, Geeks To Go, you were immensely helpful and I really appreciate it. Then I clicked cancel and went back to the page where I found the my wireless network and selected the Add button.
My work laptop which is an N and was running Windows XP SP3 was fine.
My wife's laptop was running Windows XP SP2 and was receiving the Window's error message 'unable to find certificate'.
Sometimes you have to remove your router from the list and re add it to work. It took less then 5 minutes to upgrade the drivers and both systems connected without any problem at all.