topic windows database authentication broken after upgrade in Network Access Control https://community.cisco.com/t5/network-access-control/windows-database-authentication-broken-after-upgrade/m-p/740077#M420856 <P>We upgraded from ACS 3.3 to 4.0 and it broke our authentication which is pointed to our Windows DC. The failed attempts log only shows "Internal error" when trying to authenticate. Anyone experience this?</P> Sun, 10 Mar 2019 22:08:06 GMT mjsully 2019-03-10T22:08:06Z windows database authentication broken after upgrade https://community.cisco.com/t5/network-access-control/windows-database-authentication-broken-after-upgrade/m-p/740077#M420856 <P>We upgraded from ACS 3.3 to 4.0 and it broke our authentication which is pointed to our Windows DC. The failed attempts log only shows "Internal error" when trying to authenticate. Anyone experience this?</P> Sun, 10 Mar 2019 22:08:06 GMT https://community.cisco.com/t5/network-access-control/windows-database-authentication-broken-after-upgrade/m-p/740077#M420856 mjsully 2019-03-10T22:08:06Z Re: windows database authentication broken after upgrade https://community.cisco.com/t5/network-access-control/windows-database-authentication-broken-after-upgrade/m-p/740078#M420857 <HTML><HEAD></HEAD><BODY><P>I think the problem may be with Proxy distribution table config issue. Following link may help you</P><P><A class="jive-link-custom" href="http://www.cisco.com/en/US/products/sw/secursw/ps2086/prod_release_note09186a008079fc44.html" target="_blank">http://www.cisco.com/en/US/products/sw/secursw/ps2086/prod_release_note09186a008079fc44.html</A></P></BODY></HTML> Tue, 08 May 2007 15:48:36 GMT https://community.cisco.com/t5/network-access-control/windows-database-authentication-broken-after-upgrade/m-p/740078#M420857 irisrios 2007-05-08T15:48:36Z Re: windows database authentication broken after upgrade https://community.cisco.com/t5/network-access-control/windows-database-authentication-broken-after-upgrade/m-p/740079#M420858 <HTML><HEAD></HEAD><BODY><P>I havent tried looking at the details for ver3 but maybe the remote agent needs to be upgraded to ver4 if it hasnt already?</P></BODY></HTML> Tue, 08 May 2007 20:19:25 GMT https://community.cisco.com/t5/network-access-control/windows-database-authentication-broken-after-upgrade/m-p/740079#M420858 jvr775 2007-05-08T20:19:25Z