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Date/Time: Sun, 26 Apr 2026 16:20:46 +0000



Post From: Do I need 2 SC Instances to Run Realtime Denali CME Data + Execute via CGQ Order Routing

[2026-04-15 03:03:16]
Shores2021 - Posts: 56
Thanks John,
So I got a few more specific updates from CQG and although I understand you don't provide tech support for CQG,
it sounds like the issue is either with SC trying to force another login making it too many at the time or
my internet connection.

CQG tech shows these logs, hoping you can help me decode and pinpoint exactly what is the reason I am getting these forced logoffs.
It appears to be from SC side on my end.

1. I have shot down and restarted all 3 Instances of SC and will watch monitor for other forced logoff events
2. Do I need to make sure all 3 Instances are the same version/built of SC? Can I update the versions without loosing any data/settings/studies/spreadsheets if I changed all to newest version?
3. Based on the attached logs from CQG it looks to me like forced logoffs may be triggered by too many attempts to connect to a trading service
and this error: "Your session was closed due to a concurrent session." forced_logoff_reason: 2

I hope attached logs could help in isolating what exactly causes these disconnects.

Any help would be greatly appreciated.
Regards.
imageCQG Tech providing logs to show forced logoffs from Sierra S.png / V - Attached On 2026-04-15 03:03:09 UTC - Size: 553.56 KB - 12 views