topic NAC - No Network Session witn NAD in Network Security https://community.cisco.com/t5/network-security/nac-no-network-session-witn-nad/m-p/1003169#M783725 <P>NAC Network session never begins so client posture is not checked</P><P>Extract from logs on a working client</P><P>CTA Posture State service started</P><P></P><P>7 23:36:53.218 07/04/2008 Sev=Info/4 CTASTATE/0x64400001</P><P>Value written to the registry</P><P></P><P>8 23:52:43.093 07/04/2008 Sev=Info/4 PPMgr/0x63600008</P><P>A new network session has been created with a NAD: </P><P></P><P>The log information shown would normally occur on a working client machine, on a non working machine Item 8 does not occur and the NAC process never starts.</P><P></P><P>Running - CSA 5.2.0.238 and CTA 2.1.0.130</P><P>on client.</P> Fri, 21 Feb 2020 10:54:39 GMT bcchambers 2020-02-21T10:54:39Z NAC - No Network Session witn NAD https://community.cisco.com/t5/network-security/nac-no-network-session-witn-nad/m-p/1003169#M783725 <P>NAC Network session never begins so client posture is not checked</P><P>Extract from logs on a working client</P><P>CTA Posture State service started</P><P></P><P>7 23:36:53.218 07/04/2008 Sev=Info/4 CTASTATE/0x64400001</P><P>Value written to the registry</P><P></P><P>8 23:52:43.093 07/04/2008 Sev=Info/4 PPMgr/0x63600008</P><P>A new network session has been created with a NAD: </P><P></P><P>The log information shown would normally occur on a working client machine, on a non working machine Item 8 does not occur and the NAC process never starts.</P><P></P><P>Running - CSA 5.2.0.238 and CTA 2.1.0.130</P><P>on client.</P> Fri, 21 Feb 2020 10:54:39 GMT https://community.cisco.com/t5/network-security/nac-no-network-session-witn-nad/m-p/1003169#M783725 bcchambers 2020-02-21T10:54:39Z Re: NAC - No Network Session witn NAD https://community.cisco.com/t5/network-security/nac-no-network-session-witn-nad/m-p/1003170#M783751 <HTML><HEAD></HEAD><BODY><P>I think it's happening due to re-keying of the underlying SA is causing the problem. Paste your running config of your device.</P></BODY></HTML> Thu, 10 Jul 2008 12:46:16 GMT https://community.cisco.com/t5/network-security/nac-no-network-session-witn-nad/m-p/1003170#M783751 owillins 2008-07-10T12:46:16Z