start from here http://technet.microsoft.com/en-us/library/cc772393(WS.10).aspx http://technet.microsoft.com/en-us/library/cc770413(WS.10).aspxhttp://www.virmansec.com/blogs/skhairuddin

Hello, Thanks for posting. We will have to replace or renew the certificates if they are either corrupted or expired. As the supplement to the information above, I would like to share the following MS articles. Certificates How To ... http://technet.microsoft.com/en-us/library/cc785226(v=WS.10).aspx Certificates Troubleshooting http://technet.microsoft.com/en-us/library/cc781891(v=WS.10).aspx Thanks ZHANG

Hello, Thanks for posting. We will have to replace or renew the certificates if they are either corrupted or expired. As the supplement to the information above, I would like to share the following MS articles. Certificates How To ... http://technet.microsoft.com/en-us/library/cc785226(v=WS.10).aspx Certificates Troubleshooting http://technet.microsoft.com/en-us/library/cc781891(v=WS.10).aspx Thanks ZHANG

Thanks for all the replies, you guys have been really helpful. I have a further question, how can I verify a certificate? I am asking this because some users are trying to access the wireless from their iPhone and they have to accept the certificate every time because it is always showing as not verified. Our wireless is setup to use certificates that is obtained from our DC so the certificate that is coming up as not verified is actually that of our DC. Any idea how to fix that? Thanks in advance

Hi all, I need some help. When I inherited this network I noticed that the certification authority had some corrupt certificates and also some of them have expired. Now This is my first time dealing with certification authority so I need some help as I don't even know where to begin. How can I issue new certificates? Also would it be better if I just install a new one from scratch? Is it a difficult thing to do? What are your suggestions? Thanks in advance.

start from here http://technet.microsoft.com/en-us/library/cc772393(WS.10).aspx http://technet.microsoft.com/en-us/library/cc770413(WS.10).aspxhttp://www.virmansec.com/blogs/skhairuddin

For CA queries, post here. http://social.technet.microsoft.com/Forums/en-US/winserversecurity/threads/ Thanks