Support Board
Date/Time: Tue, 13 Oct 2026 17:14:59 +0000
Rithmic Direct-DTC — Repeated Error 10061 on One DNS Endpoint and Intermittent Market Data
View Count: 36
| [2026-10-13 14:55:38] |
| User168271 - Posts: 2 |
|
Hello Sierra Chart Support, I am experiencing intermittent real-time market data delays (10 seconds to several minutes) and repeated connection failures when using Sierra Chart with Lucid Trading Rithmic Direct-DTC. Connection settings: - Sierra Chart version: 2920 - Service: Rithmic Direct - DTC [trading] - Server: LucidTrading-Chicago Area-Non-Aggregated - Host: rsc.rithmic.com - Port: 50569 - Symbol: NQZ6.CME Issue observed: Sierra Chart repeatedly attempts to connect to `208.97.247.100:50569` and fails with Windows error 10061 (Connection Refused). Network tests: DNS resolution returns three IP addresses: | IP Address | TCP Port 50569 | |---|---| | 208.97.247.100 | Failed | | 38.65.210.70 | Successful | | 184.105.22.231 | Not yet tested | I repeated the TCP tests using both my home Wi-Fi and mobile hotspot, with identical results. Additional verification: - R|Trader Pro connects and receives market data normally. - R|Trader Pro was not running while using Sierra Chart. - All Rithmic agreements have been signed. - Sierra Chart connection settings match Lucid Trading's official instructions. - Re-entering the connection credentials and reconnecting did not resolve the problem. - Lucid Trading confirmed no data-feed issue on their side and advised contacting Sierra Chart regarding DTC connectivity. Questions: 1. Why does Sierra Chart repeatedly attempt the connection to 208.97.247.100 when another IP returned by the same hostname accepts TCP connections? 2. Does Sierra Chart's Rithmic Direct-DTC connection automatically retry alternative DNS IP addresses when the first connection fails? 3. Is there a supported configuration change, software update, or diagnostic procedure that could resolve this issue? I would appreciate your assistance in determining whether this is related to Sierra Chart's Rithmic DTC connection handling or a problem that requires further investigation by Rithmic. Thank you. |
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| [2026-10-13 15:52:41] |
| User168271 - Posts: 2 |
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Hi Sierra Chart Support, I have completed additional TCP connectivity tests with Surfshark VPN enabled and disconnected. The results were identical in both environments: - 208.97.247.100:50569 — Failed (Winsock 10061, 2/2 attempts) - 38.65.210.70:50569 — Successful (2/2 attempts) - 184.105.22.231:50569 — Successful (2/2 attempts) With the VPN disconnected, Windows routing selected my physical Wi-Fi adapter, and successful TCP connections used its local IP address. Although residual VPN filtering has not been fully ruled out, the same connection failure persisted without an active VPN tunnel. Could you please confirm whether all three IP addresses are valid Rithmic DTC endpoints on port 50569, and whether Sierra Chart automatically retries alternative IP addresses when a connection is refused? Thank you. |
| [2026-10-13 16:00:38] |
| Sierra_Chart Engineering - Posts: 25163 |
|
We understand the reason for the problem. We will have a solution out later today. You will need to update to the latest prerelease.
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 |
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