Hello all,
We have recently migrated our windows 2003 IAS server configuration to a Windows 2008 R2 NPS server by means of exporting and importing the config file.
This is used to provide Radius service, our Radius clients are Network Switches.
There are more than 100 switches, since the migration the Radius service functions correctly except that from time to time randomly one of the Switches stop being able to authenticate with the Radius server, this seems to be related to the Shared-Secret between the Switch and Radius client configuration on the NPS server, in these cases we just have to retype the shared-secret on the Radius Client configuration on the NPS server and that solves the problem.
Has anyone come across similar problem or would know why this is happening, we have not been able to find anything significant in the log files.
Thanks for your help,
Luca