Cisco Identity Service Engine version 2.1.0.474

We are currently running ISE 2.1. We are getting these errors constantly. I have searched the support community but did not find a resolution. A TAC case has been opened and is currently in waiting status. Has anyone seen this and what is the resolution?

Operations, Report, Diagnostic, Misconfigured NAS dispalys the following:

Message: NAS conducted several failed authentications of the same scenario

Reason: 12929 NAS sends RADIUS accounting update messages too frequently

Details: ConfigVersionId=595,Device IP Address=10.195.x.x,Device Port=1646,DestinationIPAddress=10.128.x.x,DestinationPort=1813,RadiusPacketType=AccountingRequest,UserName=7C-AD-74-EF-8E-C0,Protocol=Radius,RequestLatency=1,NetworkDeviceName=(switchname),User-Name=7C-AD-74-EF-8E-C0,NAS-Port=50101,Service-Type=Framed,Framed-IP-Address=10.195.x.x,Class=CACS:0AC354020000A3C5B6AA126B:ch61isepsn01/280812082/40369697,Called-Station-ID=28-C7-CE-B8-F2-81,Acct-Status-Type=Interim-Update,Acct-Delay-Time=0,Acct-Input-Octets=3709011336,Acct-Output-Octets=1984843957,Acct-Session-Id=0000E2EE,Acct-Authentic=RADIUS,Acct-Session-Time=975654,Acct-Input-Packets=10063228,Acct-Output-Packets=14912345,NAS-Port-Type=Ethernet,NAS-Port-Id=GigabitEthernet1/0/1,undefined-151=110A32A6,cisco-av-pair=audit-session-id=0AC354020000A3C5B6AA126B,cisco-av-pair=connect-progress=Auth Open,cisco-av-pair=cdp-tlv=cdpCachePrimaryMgmtAddr=00:00:00:01:01:01:cc:00:04:0a:c3:50:7e,cisco-av-pair=cdp-tlv=cdpCacheDuplex=01:,cisco-av-pair=cdp-tlv=cdpCacheCapabilities=00:00:00:2d,cisco-av-pair=cdp-tlv=cdpCacheDevicePort=GigabitEthernet0/0,cisco-av-pair=cdp-tlv=cdpCacheAddressType=00:00:00:01:01:01:cc:00:04:0a:c3:50:7e,cisco-av-pair=cdp-tlv=cdpCachePlatform=Cisco CISCO2911/K9,cisco-av-pair=cdp-tlv=,cisco-av-pair=cdp-tlv=cdpCacheDeviceId=(routername),NetworkDeviceProfileName=Cisco,NetworkDeviceProfileId=11ee475f-56c3-4bfe-81d9-ea617bcb9356,IsThirdPartyDeviceFlow=false,RadiusFlowType=Wired802_1x,SSID=28-C7-CE-B8-F2-81,AcsSessionID=ch61isepsn01/280812082/40598872,SelectedAccessService=Default Network Access,Step=11004,Step=11017,Step=15049,Step=15008,Step=15004,Step=11005,Step=12929,Step=5435,NetworkDeviceGroups=Location#All Locations#Default,NetworkDeviceGroups=Device Type#All Device Types#SWITCH,CPMSessionID=0AC354020000A3C5B6AA126B,EndPointMACAddress=7C-AD-74-EF-8E-C0,ISEPolicySetName=TXDOT_WIRED,AllowedProtocolMatchedRule=Dot1X,StepData=4=Dot1X,Network Device Profile=Cisco,Model Name=WS-C2960X-24PS-L,Location=Location#All Locations#Default,Device Type=Device Type#All Device Types#SWITCH

12929 NAS sends RADIUS accounting update messages too frequently

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