https://community.extremenetworks.com/t5/extremecontrol/nac-with-802-1x-authentication-problem/m-p/119073#M2087 <P>Hello everyone,&nbsp;</P><P>i've a strange problem on a customer's NAC that we recently configured, with a pc test which has only few GPO policy i can authenticate, it correctly goes online, search the web, and most important i can reach the siteengine page (the certificate fails tho) and sucesfully make the login.&nbsp;</P><P>With another pc (more than one) i can do all the above but when i try to reach the site engine webpage it says the usual phrase that the page is unsecure and if i want to continue (like the above example) but then it goes in timeout.&nbsp;</P><P>Now i've check everything, it authenticate on the correct role, gets the ip address, i can see it has no errors on the site engine but i cant reach this resource, i think is a GPO in which these machines are into (i've no access to their AD), but could it be some misconfiguration on the nac engine?&nbsp;</P><P>&nbsp;</P><P>Thanks</P> Tue, 01 Jul 2025 15:46:58 GMT truefast 2025-07-01T15:46:58Z https://community.extremenetworks.com/t5/extremecontrol/nac-with-802-1x-authentication-problem/m-p/119073#M2087 <P>Hello everyone,&nbsp;</P><P>i've a strange problem on a customer's NAC that we recently configured, with a pc test which has only few GPO policy i can authenticate, it correctly goes online, search the web, and most important i can reach the siteengine page (the certificate fails tho) and sucesfully make the login.&nbsp;</P><P>With another pc (more than one) i can do all the above but when i try to reach the site engine webpage it says the usual phrase that the page is unsecure and if i want to continue (like the above example) but then it goes in timeout.&nbsp;</P><P>Now i've check everything, it authenticate on the correct role, gets the ip address, i can see it has no errors on the site engine but i cant reach this resource, i think is a GPO in which these machines are into (i've no access to their AD), but could it be some misconfiguration on the nac engine?&nbsp;</P><P>&nbsp;</P><P>Thanks</P> Tue, 01 Jul 2025 15:46:58 GMT https://community.extremenetworks.com/t5/extremecontrol/nac-with-802-1x-authentication-problem/m-p/119073#M2087 truefast 2025-07-01T15:46:58Z