Hi,
We are using Windows 2008 NPS server to authenticate Wireless clients. We use PEAP protocol for the same. The issue which we are facing in one location is when we are trying to connect wireless clients it is failing. In the NPS server under NPS Logs we are not getting any error/warning/information. If we export the configuration of this server and configure another Server in remote location the authentication is working fine.
We have reformatted the server and reconfigured the same but still no use. We have even tried to configure another server in the same location but no use.
While troubleshooting we have installed Wireshark and captured the traffic on NPS server. We can see the below pattern:
- Access Point is sending RADIUS Access Request(1) to NPS server
- NPS Server is responding with RADIUS Access Challenge (11) Checksum error.
I am not understanding what might be the issue because once we redirect the setup to another NPS server without changing any Access Point or NPS configuration it works fine.
Is there a way to troubleshoot the issue and know the reason for the same.