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Windows 7: Windows is unable to find a certificate to log on to the network

04 Dec 2010   #1

Windows 7 Home Premium (Retail) Full version - With SP1
Windows is unable to find a certificate to log on to the network

I have the following small network set up.

Desktop 1 Windows 7 with wireless router connected by eternet cable
Desktop 2 WinXP connected by Belkin wireless card
Laptop Windows 7 connected by a built in Broadcom wireless adapter

All was working fine until my Dlink wireless/router/Dsl modem packed it in and I replaced it with a Netgear N300 giga bit wireless router and a separate modem. The Netgear is set up with WPA2-PSk as is the laptop. Desktop 2's Broadcom has only WEP and WPA-PSK. It worked fine with the Dlink.

The problem is when I try to log on to the network with Desktop 2, I get the dreaded 'Window was unable to find a certificate to log on the network' message. However, if I change the to WEP encryption and uncheck 'Enable IEEE 802.1x authentication for this network' as suggested by many posts on the 'Net, I can log on just fine.

Just to be clear, each computer is set up just as it was when the Dlink was present and worked fine for a long time until the Dlink packed it in.

Is there something special I have to do to get Desktop 2 to be able to log on the the Netgear just as it did when using the Dlink?

Thank you very much.

My System SpecsSystem Spec


 Windows is unable to find a certificate to log on to the network

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