Login Page - Create Account

Support Board


Date/Time: Fri, 09 Oct 2026 19:10:43 +0000



Post From: Rithmic Direct - DTC [trading] cannot connect since 2026-10-08 ~18:34 ET (Lucid Trading)

[2026-10-09 11:16:27]
User675505 - Posts: 1
- Service: Rithmic Direct - DTC [trading]
- Server: LucidTrading-Chicago Area-Hello,

Since Thursday 2026-10-08 around 18:34 ET my Sierra Chart cannot connect to Rithmic (Lucid Trading account). It worked normally before that, with real-time data and the DTC trading connection. I have sent the Message Log with "Send For Analysis".

Setup:Non-Aggregated (other servers/areas tried as well, same result)
- Sierra Chart version: 2968 (prerelease; the problem started on 2957)
- Windows 11, no VPN

What the log shows on every attempt:
1. HTTPS connection to downloads.rithmic.com:443 (TLS 1.3): "Encryption stream error encountered when processing received data", then "HTTP response receiving connection points not completed or OK."
2. Sierra then connects to rsc.rithmic.com port 50569 (184.105.22.231) and fails with Windows error 10060 (connection timed out). "Failed connections" keeps increasing.

What I have checked / tried:
- Updated Sierra Chart from 2957 to 2968 (prerelease) and restarted Sierra Chart and the PC.
- Tried other Lucid servers / areas in the Server list: same error.
- From the same PC, outside Sierra Chart, downloads.rithmic.com:443 is reachable and returns HTTP 200 with both TLS 1.2 and TLS 1.3, so the internet connection and system clock are fine.
- Port 50569 on all rsc.rithmic.com addresses (208.97.247.100, 184.105.22.231, 38.65.210.70) does not accept connections from this PC.

Could you please check whether this is a Rithmic / gateway problem or an issue with the connection-points download in Sierra Chart, and which server or port I should use?

Thank you


2026-10-09 11:11:45.927 | Rithmic Direct - DTC | Using server connection: LucidTrading-Chicago Area-Non-Aggregated
2026-10-09 11:11:45.927 | Rithmic Direct - DTC | Trading server address/port: rsc.rithmic.com:50569
2026-10-09 11:11:45.927 | Rithmic Direct - DTC | Connecting to the server rsc.rithmic.com. Port 50569
2026-10-09 11:11:45.929 | DTC Client socket (1) | Creating socket. Using TLS 1.2.
2026-10-09 11:11:45.929 | DTC Client socket (1) | New receive buffer size: 0
2026-10-09 11:11:45.929 | DTC Client socket (1) | Connecting to IP: 208.97.247.100 Port: 50569.
2026-10-09 11:12:05.933 | HTTPS connection ID:60 to downloads.rithmic.com:443 for request ID:60 (3) | Creating socket. Using TLS 1.3.
2026-10-09 11:12:05.934 | HTTPS connection ID:60 to downloads.rithmic.com:443 for request ID:60 (3) | New receive buffer size: 0
2026-10-09 11:12:05.934 | HTTPS connection ID:60 to downloads.rithmic.com:443 for request ID:60 (3) | Connecting to IP: 216.66.0.130 Port: 443.
2026-10-09 11:12:06.532 | Rithmic Direct - DTC | Wrote file: C:\SierraChart\RithmicConnections.json. Size: 122182
2026-10-09 11:12:06.534 | Rithmic Direct - DTC | Processed connection points. Count: 524
2026-10-09 11:12:06.534 | Error connecting to Data or Trading service. For help with this issue, press the 'Send For Analysis' button on this window.
2026-10-09 11:12:06.534 | Select 'File >> Disconnect' to prevent further connection attempts.
2026-10-09 11:12:06.555 | DTC Client socket (1) | CloseSocket call.
2026-10-09 11:12:06.555 | DTC Client socket (1) | Closed.
2026-10-09 11:12:06.556 | Rithmic Direct - DTC | Disconnected.
2026-10-09 11:12:06.556 | Will reconnect to the server in 4.0 seconds. Select 'File >> Disconnect' to prevent further connection attempts.
2026-10-09 11:12:06.557 | Rithmic Direct - DTC | Delayed processing for close network socket is complete
2026-10-09 11:12:06.786 | HTTPS connection ID:60 to downloads.rithmic.com:443 for request ID:60 (3) | CloseSocket call.
2026-10-09 11:12:06.787 | HTTPS connection ID:60 to downloads.rithmic.com:443 for request ID:60 (3) | Shutdown started. Waiting for graceful close.
2026-10-09 11:12:06.885 | HTTPS connection ID:60 to downloads.rithmic.com:443 for request ID:60 (3) | Socket gracefully closed by remote side. Socket close state=2
2026-10-09 11:12:06.885 | HTTPS connection ID:60 to downloads.rithmic.com:443 for request ID:60 (3) | Closed.
2026-10-09 11:12:10.557 |