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Date/Time: Thu, 09 Jul 2026 16:04:04 +0000



Post From: Notice: July 9, 2026 - Internet Connectivity Issues Affecting CME Data

[2026-07-09 14:01:04]
Sierra_Chart Engineering - Posts: 24211
Additional information from Lumen:


2026-07-09 13:36:24 GMT - The Network Implementation Engineer (NI) is analyzing the light level test results.

2026-07-09 13:31:00 GMT - A fiber failure has been identified and Field Operations has been dispatched to both sides of the fiber span to light level test the fiber and isolate the failure.

2026-07-09 12:50:40 GMT - On July 09, 2026 at 12:33 GMT, Lumen discovered a service impact in Broadview, IL. Your customer trouble ticket has been related to a network event, all network events are automatically escalated to Lumen leadership.

The Network Operations Center (NOC) is investigating to determine the cause. Please be advised that live updates for this event will be relayed at a minimum of hourly unless otherwise stated or as relevant details evolve.

Sierra Chart Support - Engineering Level

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