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Date/Time: Mon, 16 Mar 2026 21:45:15 +0000



Post From: CME Data Freezing

[2026-03-12 15:48:43]
Sierra_Chart Engineering - Posts: 23225
Just to let you know that your ISP Lumen servers are not working well today, namely e.g. IP 4.69.143.253 Server name: ae8.8.bar3.Detroit1.net.lumen.tech, among other Lumen servers.

Your servers affected are DS26, DS31-2, ds25-2, ds26-2 and possibly a few more.
To be clear, the problem is not with the servers. It has to do with the ISP used for those servers which is at a completely separate layer away from the server. This is at the routing layer.



These Lumen servers are constantly failing and causing package loss. This is not a normal situation at all, they have been working well.

I hope this information helps you to resolve the problem with the ISP.
There is nothing for us to resolve. We do not contact an ISP about these transient issues. Only if there is an ongoing persistent issue. ISPs have problems all the time and they detect them and correct them.

Now we understand the reason for the problem. Probably the issue was simply with Lumen and we have no control over that. This is going to happen from time to time! Nothing we can do about it.

Now it is clear the problem was likely with Lumen. Interesting, we are getting two additional circuits from them. They are overall a very good provider.
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:
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Date Time Of Last Edit: 2026-03-12 15:49:48