Core DNS Protection Block Page is currently experiencing an issue
View the provider incident record →Current answer
OpenText experienced a minor incident: Core DNS Protection Block Page is currently experiencing an issue. ServiceAlert observed recovery on Sep 29, 2026.
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Incident Lifecycle
Affected Components
Core DNS Protection
Incident Timeline
Identified
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
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
Sep 29, 2026 at 2:13 AM UTC
Identified
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
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
Sep 28, 2026 at 8:15 PM UTC
Identified
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.
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.
Sep 28, 2026 at 1:31 PM UTC
Identified
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
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
Sep 25, 2026 at 9:40 PM UTC
Identified
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
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
Sep 25, 2026 at 12:15 PM UTC
Identified
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
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
Sep 24, 2026 at 10:17 PM UTC
Identified
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
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
Sep 24, 2026 at 2:17 PM UTC
Investigating
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
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
Sep 24, 2026 at 7:09 AM UTC
Investigating
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
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
Sep 23, 2026 at 11:09 PM UTC
Investigating
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
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
Sep 23, 2026 at 10:13 PM UTC
Investigating
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
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
Sep 23, 2026 at 9:10 PM UTC
Investigating
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
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
Sep 23, 2026 at 8:10 PM UTC
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