I have problem with my Radius Server. I got X16 as a backbone and B5 at the edges. I have configured NAP Polices on windows 2008. There is no domain but we are doing mac authentication. We write down all the macs on Radius Server. Also, we have 8 vlan for users. Therefore all users authenticated and get their Vlan as a dynamicly.
My problem is sometimes some users can not authenticated. But when we do "ipconfig /release" & "ipconfig /renew" then they can authenticate and get correct Vlan. This makes lots of problem for us. Why sometimes its doing like this. This problem occurs on every vlan but not all time. If 100 people authenticate normally 1 or 2 of them need to release and renew their ip address.
I will be very happy if someone can help.