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Date/Time: Wed, 18 Mar 2026 16:51:56 +0000



Post From: Logon authorisation failure

[2026-03-18 13:29:27]
User756826 - Posts: 8
Dear Team,

I have not been using Sierra charts for a while (12.2025). Now I have logged in again and I can not rollover to the new symbol. I get the message " Historical Intraday Data Download Failed Error downloading historical Intraday data for F:US:EPM26. Historical data logon error: Logon rejected due to authorisation failure.". The charts then come up blank. My data feed is green.
How can this be fixed?

Thank you