Northwestern University incident

Arthur Rubloff Building Firewall Service Interruption

Resolved after 19 hours 11 minutes, affecting Wired Network Services (Network Connectivity), on October 23, 2026.

resolved Oct 23, 2026, 11:57 PM UTC

Full redundancy has been restored to the firewall that serves the Arthur Rubloff Building. A root cause for this issue is still being identified with the vendor.

Started
Oct 23, 2026, 04:46 AM UTC
Resolved
Oct 23, 2026, 11:57 PM UTC
Duration
19h 11m
Detected by Pingoru
Oct 23, 2026, 04:46 AM UTC

Affected components

Wired Network Services (Network Connectivity)

Update timeline

  1. identified Oct 23, 2026, 04:46 AM UTC

    Northwestern Information Technology is working to resolve an issue with 750nlsd-4west-fw-3-abf-node0 firewall after patching. The next update will be by 10/23/2026 10:00 CDT.

  2. identified Oct 23, 2026, 06:06 PM UTC

    Northwestern Information Technology is continuing to investigate and resolve an issue with 750nlsd-4west-fw-3-abf-node0 firewall after patching. The next update will be provided by 9:00 AM CDT, 10/26/2026

  3. resolved Oct 23, 2026, 11:57 PM UTC

    Full redundancy has been restored to the firewall that serves the Arthur Rubloff Building. A root cause for this issue is still being identified with the vendor.

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