https://community.cisco.com/t5/network-access-control/error-authentication-encountered-an-error-due-to-network-ad-dns/m-p/5166403#M591425 <P>I did the simple removing and re-joining the ISE to the domain, and it began to authenticate other users as well.</P> Tue, 27 Aug 2024 10:00:27 GMT NOVA IT Support 2024-08-27T10:00:27Z https://community.cisco.com/t5/network-access-control/error-authentication-encountered-an-error-due-to-network-ad-dns/m-p/5166400#M591424 <P>My primary ISE went down due to a power challenge at the DC. Upon coming back online, users were unable to authenticate their domain credentials.</P><P>The error: Authentication encountered an error due to network, AD DNS misconfiguration. This may be a temporary error.</P><P>&nbsp;</P> Tue, 27 Aug 2024 09:57:59 GMT https://community.cisco.com/t5/network-access-control/error-authentication-encountered-an-error-due-to-network-ad-dns/m-p/5166400#M591424 NOVA IT Support 2024-08-27T09:57:59Z https://community.cisco.com/t5/network-access-control/error-authentication-encountered-an-error-due-to-network-ad-dns/m-p/5166403#M591425 <P>I did the simple removing and re-joining the ISE to the domain, and it began to authenticate other users as well.</P> Tue, 27 Aug 2024 10:00:27 GMT https://community.cisco.com/t5/network-access-control/error-authentication-encountered-an-error-due-to-network-ad-dns/m-p/5166403#M591425 NOVA IT Support 2024-08-27T10:00:27Z