topic ACS v4.0 SE HTTP 500 internal server error in Network Access Control https://community.cisco.com/t5/network-access-control/acs-v4-0-se-http-500-internal-server-error/m-p/536314#M8148 <P>When I try to authenticate (by SSL/HTTPS) to my ACS v4.0 SE with IE6.0 browser, I get a HTTP 500 internal server error. I already tried to restart all services, reboot the ACS appliance and delete and reimport my certificates. What can I do more? I need some advices from you. Best Regards.</P> Fri, 21 Feb 2020 18:15:51 GMT rogeliodias 2020-02-21T18:15:51Z ACS v4.0 SE HTTP 500 internal server error https://community.cisco.com/t5/network-access-control/acs-v4-0-se-http-500-internal-server-error/m-p/536314#M8148 <P>When I try to authenticate (by SSL/HTTPS) to my ACS v4.0 SE with IE6.0 browser, I get a HTTP 500 internal server error. I already tried to restart all services, reboot the ACS appliance and delete and reimport my certificates. What can I do more? I need some advices from you. Best Regards.</P> Fri, 21 Feb 2020 18:15:51 GMT https://community.cisco.com/t5/network-access-control/acs-v4-0-se-http-500-internal-server-error/m-p/536314#M8148 rogeliodias 2020-02-21T18:15:51Z Re: ACS v4.0 SE HTTP 500 internal server error https://community.cisco.com/t5/network-access-control/acs-v4-0-se-http-500-internal-server-error/m-p/536315#M8149 <HTML><HEAD></HEAD><BODY><P>Is there any logentry in the webserver log ?</P><P></P><P>Sometimes i had trouble with the Windows Component "Internet Explorer Enhanced Security Configuration", maybe this caused your problems.</P><P></P><P>Otherwise check if you have java runtime installed.</P><P></P><P>that's all i can guess at the moment.</P><P></P><P></P><P>regards</P><P>harry</P><P></P><P></P></BODY></HTML> Mon, 29 May 2006 12:36:09 GMT https://community.cisco.com/t5/network-access-control/acs-v4-0-se-http-500-internal-server-error/m-p/536315#M8149 HarrytheBrain 2006-05-29T12:36:09Z