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EAP-MSCHAP-V2 auth failure with internal error

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Hi,

I am trying to do a EAP-MSCHAP-V2 authentication using Microsoft Windows Server 2012. The Connection Request Policy and Network Policy matches fine. But the NPS doesnt respond with Access Accept/Reject after the Challenge. The event log is pasted below.

System
-Provider
[ Name]Microsoft-Windows-Security-Auditing
[ Guid]{54849625-5478-4994-A5BA-3E3B0328C30D}
EventID6274
Version0
Level0
Task12552
Opcode0
Keywords0x8010000000000000
-TimeCreated
[ SystemTime]2015-02-27T13:02:15.161062800Z
EventRecordID3107890
Correlation
-Execution
[ ProcessID]536
[ ThreadID]556
ChannelSecurity
Computertest.sandbox.com
Security
-EventData
SubjectUserSidS-1-5-21-3785042689-3882553610-222231796-1118
SubjectUserName0a-00-3e-a0-00-34
SubjectDomainNameSANDBOX
FullyQualifiedSubjectUserNamesandbox.com/Users/deeps-ap
SubjectMachineSIDS-1-0-0
SubjectMachineName-
FullyQualifiedSubjectMachineName-
MachineInventory-
CalledStationID-
CallingStationID-
NASIPv4Address10.110.63.10
NASIPv6Address-
NASIdentifier-
NASPortTypeWireless - Other
NASPort5
ClientNameDeeps_AP
ClientIPAddress10.110.63.10
ProxyPolicyNamedeeps-test
NetworkPolicyNamedeeps-test
AuthenticationProviderWindows
AuthenticationServerxxx.sandbox.com
AuthenticationTypeEAP
EAPType-
AccountSessionIdentifier-
ReasonCode1
ReasonAn internal error occurred. Check the system event log for additional information.


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