topic Re: ACS Invalid Administration Connection in Network Access Control https://community.cisco.com/t5/network-access-control/acs-invalid-administration-connection/m-p/454962#M428858 <HTML><HEAD></HEAD><BODY><P>The problem is in the Access policy set on the ACS Server.</P></BODY></HTML> Fri, 15 Jul 2005 18:17:08 GMT thomas.chen 2005-07-15T18:17:08Z ACS Invalid Administration Connection https://community.cisco.com/t5/network-access-control/acs-invalid-administration-connection/m-p/454961#M428854 <P>I have an ACS box that is working properly and you can administer it remotely from any device except behind an 831 doing VPN to the host site. I have looked through the ACS and there are no IP or Port restricitions. Ocassionaly it will actually log in and I get to the home page, but it will then go back to the "Invalid Administration Connection". I am able to use other servers on the same network as the ACS from this device but just not the ACS. I have also changed the tcp-adjust mtu size but still cannot successfully log in. Anyone have any ideas.</P> Sun, 10 Mar 2019 21:13:19 GMT https://community.cisco.com/t5/network-access-control/acs-invalid-administration-connection/m-p/454961#M428854 ebuckley 2019-03-10T21:13:19Z Re: ACS Invalid Administration Connection https://community.cisco.com/t5/network-access-control/acs-invalid-administration-connection/m-p/454962#M428858 <HTML><HEAD></HEAD><BODY><P>The problem is in the Access policy set on the ACS Server.</P></BODY></HTML> Fri, 15 Jul 2005 18:17:08 GMT https://community.cisco.com/t5/network-access-control/acs-invalid-administration-connection/m-p/454962#M428858 thomas.chen 2005-07-15T18:17:08Z Re: ACS Invalid Administration Connection https://community.cisco.com/t5/network-access-control/acs-invalid-administration-connection/m-p/454963#M428861 <HTML><HEAD></HEAD><BODY><P>Actually, I am not blocking ports or ip addresses in the access policy on the ACS. I am not sure what it is at this point.</P></BODY></HTML> Mon, 18 Jul 2005 12:30:25 GMT https://community.cisco.com/t5/network-access-control/acs-invalid-administration-connection/m-p/454963#M428861 ebuckley 2005-07-18T12:30:25Z Re: ACS Invalid Administration Connection https://community.cisco.com/t5/network-access-control/acs-invalid-administration-connection/m-p/454964#M428866 <HTML><HEAD></HEAD><BODY><P>This message is displayed if you're connecting through a Web proxy instead of directly.</P></BODY></HTML> Fri, 07 Oct 2005 13:12:33 GMT https://community.cisco.com/t5/network-access-control/acs-invalid-administration-connection/m-p/454964#M428866 g-hewson 2005-10-07T13:12:33Z