Outage in OpenText
Core DNS Protection Block Page is currently experiencing an issue
Resolved MinorIncident Report
Summary AI Generated
OpenText Core DNS Protection Block Page experienced an issue where clients accessing blocked HTTPS websites received browser certificate warnings instead of the expected block page, lasting approximately 141 hours. DNS policy enforcement remained intact throughout — blocked sites stayed inaccessible — but the incorrect certificate warning created a confusing user experience. The issue was resolved via a DNS Agent update and related certificate deployment utility, with fixes applied automatically to affected clients.
Core DNS Protection Block Page customers accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected. Teams are currently assembled and working to resolve the issue.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. We appreciate your patience.
Tracking Number: I5791953
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Latest Updates ( sorted recent to last )
RESOLVED
2 days ago - at 09/29/2026 04:50PM
Core DNS Protection Block Page clients experienced an issue accessing blocked HTTPS websites. The required updates are now available and should be applied automatically soon. Once completed, the issue is expected to be resolved without further action. The related certificate deployment utility is also available for download. We appreciate your patience.
Tracking Number: I5791953
IDENTIFIED
3 days ago - at 09/29/2026 02:13AM
Core DNS Protection Block Page clients accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected.
The required DNS Agent update, and a related client utility update is in progress. We appreciate your patience.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. Updates for this issue will be sent by 1:00 PM Eastern tomorrow, or if there are significant updates, whichever comes first.
Tracking Number: I5791953
IDENTIFIED
3 days ago - at 09/28/2026 08:15PM
Core DNS Protection Block Page clients accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected.
Teams have scheduled the required DNS Agent update to begin today, and a related client utility update is also planned to be deployed. We appreciate your patience.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. Updates for this issue will be sent every 6 hours or if there are significant updates, whichever comes first.
Tracking Number: I5791953
IDENTIFIED
3 days ago - at 09/28/2026 01:31PM
Core DNS Protection Block Page clients accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected.
Teams are implementing a fix, and the backend update is already in place. The required DNS Agent update is currently being validated before broader deployment, and a related client utility update is also planned to be deployed. We appreciate your patience.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. Updates for this issue will be sent every 6 hours or if there are significant updates, whichever comes first.
IDENTIFIED
6 days ago - at 09/25/2026 09:40PM
Core DNS Protection Block Page clients accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected.
Teams are implementing a fix, and the backend update is already in place. The required DNS Agent update is currently being validated before broader deployment, and a related client utility update is also planned to be deployed. We appreciate your patience.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. Updates for this issue will be sent on 28 September 2026 or if there are significant updates, whichever comes first.
Tracking Number: I5791953
IDENTIFIED
6 days ago - at 09/25/2026 12:15PM
Core DNS Protection Block Page clients accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected. Teams have identified the cause and are working to resolve the issue as quickly as possible.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. Updates for this issue will be sent every 12 hours or if there are significant updates, whichever comes first. We appreciate your patience.
Tracking Number: I5791953
IDENTIFIED
7 days ago - at 09/24/2026 10:17PM
Core DNS Protection Block Page clients accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected. Teams have identified the cause and are working to resolve the issue as quickly as possible.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. Updates for this issue will be sent every 12 hours or if there are significant updates, whichever comes first. We appreciate your patience.
Tracking Number: I5791953
IDENTIFIED
7 days ago - at 09/24/2026 02:17PM
Core DNS Protection Block Page clients accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected. Teams have identified the cause and are working to resolve the issue as quickly as possible.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. Updates for this issue will be sent every 8 hours or if there are significant updates, whichever comes first. We appreciate your patience.
Tracking Number: I5791953
INVESTIGATING
7 days ago - at 09/24/2026 07:09AM
Core DNS Protection Block Page customers accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected. Teams are currently assembled and working to resolve the issue.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. We appreciate your patience.
Updates for this issue will be sent every 8 hours or if there are significant updates, whichever comes first.
Tracking Number: I5791953
INVESTIGATING
8 days ago - at 09/23/2026 11:09PM
Core DNS Protection Block Page customers accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected. Teams are currently assembled and working to resolve the issue.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. We appreciate your patience.
Updates for this issue will be sent every 8 hours or if there are significant updates, whichever comes first.
Tracking Number: I5791953
INVESTIGATING
8 days ago - at 09/23/2026 10:13PM
Core DNS Protection Block Page customers accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected. Teams are currently assembled and working to resolve the issue.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. We appreciate your patience.
Tracking Number: I5791953
INVESTIGATING
8 days ago - at 09/23/2026 09:10PM
Core DNS Protection Block Page customers accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected. Teams are currently assembled and working to resolve the issue.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. We appreciate your patience.
Tracking Number: I5791953
INVESTIGATING
8 days ago - at 09/23/2026 08:10PM
Core DNS Protection Block Page customers accessing blocked HTTPS websites may see a browser certificate warning instead of the DNS Protection block page. Blocked websites remain inaccessible, and DNS Protection continues to enforce policies as expected. Teams are currently assembled and working to resolve the issue.
No customer action is required at this time. If further action becomes necessary, specific instructions will be provided. We appreciate your patience.
Tracking Number: I5791953
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