Support Board
Date/Time: Thu, 09 Jul 2026 16:04:58 +0000
[Sticky] [Locked] - Notice: July 9, 2026 - Internet Connectivity Issues Affecting CME Data
View Count: 70
| [2026-07-09 13:16:20] |
| Sierra_Chart Engineering - Posts: 24211 |
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We are having issues with Internet connectivity in the Aurora data center, affecting CME data. You should still be receiving data, but in many cases there would have been an interruption. Appears to be a problem with Lumen. To download missing historical Intraday data, refer to: Historical Intraday Data (Missing Data / Download Errors / Viewing More Data): Retrying the Download When There is Data in the Chart Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2026-07-09 14:21:26
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| [2026-07-09 13:22:06] |
| Sierra_Chart Engineering - Posts: 24211 |
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We are going to utilize a Cogent connection we have there at this time.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2026-07-09 13:26:22] |
| Sierra_Chart Engineering - Posts: 24211 |
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There may be some missing historical Intraday data. We are resolving this.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2026-07-09 13:52:01] |
| Sierra_Chart Engineering - Posts: 24211 |
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This is from Lumen: Most Probable Root Cause
There is an active network issue on our end that is currently affecting your internet service, and our technical teams are already working to resolve it. Network Event ticket number 34869310 is open and being actively worked by Lumen engineers — no start/stop times are currently available in the provided data. Recommended Next Actions No action is required on your end at this time — an active network issue has been identified on our side and Lumen engineers are already working on a resolution under ticket 34869310. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2026-07-09 13:52:29
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| [2026-07-09 14:01:04] |
| Sierra_Chart Engineering - Posts: 24211 |
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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 Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2026-07-09 14:02:47] |
| Sierra_Chart Engineering - Posts: 24211 |
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What worries us about problems like this, is whether both of our carriers, Zayo and Lumen, could be affected by a fiber cut. Hopefully they do not have any shared paths of the connectivity. Anyway, at this time the Zayo connection is up. No affect to Teton order routing. But if Zayo has a problem, there is going to be a full loss of connectivity. Although we can then use a Cogent connection we have. But our understanding is that Cogent uses Zayo in Aurora. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2026-07-09 14:03:03
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| [2026-07-09 14:17:45] |
| Sierra_Chart Engineering - Posts: 24211 |
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The impact from this outage on historical data is now all resolved. But you may need to restart Sierra Chart, to get updated server addresses. We had to make a change to those for historical data. We did make a DNS change. So a restart is not necessary but that could take hours to go into effect for some users. To download missing historical Intraday data, refer to: Historical Intraday Data (Missing Data / Download Errors / Viewing More Data): Retrying the Download When There is Data in the Chart Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2026-07-09 14:19:50
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