Support Board
Date/Time: Tue, 21 Jul 2026 10:38:59 +0000
EUREX DOM freezes every ~5 seconds (1–2s lag) despite low chart draw time
View Count: 1202
| [2026-04-01 08:03:22] |
| Sierra_Chart Engineering - Posts: 24286 |
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The processing of the data on the server, is efficient and we noticed no performance issues or any type of freezing at all. It all looks very good. The previous problem is definitely resolved now. If there is an interruption it would be due to Internet connectivity most likely. We are also monitoring the data feed remotely, in the United States and do not observe any problems. What symbol are you looking at? We checked June FESX. What we want you to do when you notice the freezing is look at the title bar of Sierra Chart and look at the clock. It should be updating every second. Is it stopping? 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 |
| [2026-04-01 08:15:09] |
| User197029 - Posts: 67 |
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Thank you. The clock in the Sierra Chart title bar does not stop when this happens. It continues updating every second. For additional context, I have now also enabled the Sierra NTP client properly, and Sierra has permission to set system time. The log shows only very small clock adjustments, for example around -2.6 ms and +10.7 ms, with packet offsets around 9 to 13 ms, so local clock mismatch should no longer be a factor. I have also enabled the DD field in the chart header. What I am seeing there is that the minimum is around 00:00:00.500, but at times it spikes much higher, for example around 10 seconds, then around 4 seconds, and quite often around 2 seconds. I am looking at June FESX. I am not sure whether those DD spikes are meaningful on your side, but I thought it may be useful information for your checks. It was working ok yesterday so not sure why this is happening. My internet speed is 150mb |
| [2026-04-01 15:07:07] |
| User197029 - Posts: 67 |
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Quick update: It seems to be working now. I haven't changed anything on my end. DD time is now around 00:00:00.100
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| [2026-06-05 14:06:16] |
| User197029 - Posts: 67 |
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Hi! There is again a problem with the EUREX FESX datafeed. DOM movements are delayed/stuck from time to time. Clock is ticking normally. Can you check please? thank you
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| [2026-06-05 14:35:57] |
| John - SC Support - Posts: 47262 |
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We are not seeing any issues with the data for FESX. We do see the price not updating continuously, but this is just due to how often trades are occurring and is perfectly normal. For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2026-06-05 14:59:12] |
| User197029 - Posts: 67 |
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Thank you John, it is working normally again now. But there was a period where it got stuck (I am looking at this DOM for the last 8 years so I can tell when things are not moving as they should). The DD counter on my chart confirmed loading times between 1-3 seconds. I dont know why it happened but I am glad it is working again. Thank you
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