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Same here. I hope it's a bug - not a new feature.

14:32:11:010 <- 20-1612-540729664-DAX-FUT-20230915-0--25-EUREX--EUR-FDAX SEP 23-FDAX-0-20230911 00:00:00 MET-1 day-1 W-1-TRADES-1-0--
14:32:11:195 -> ---x4-2-1612-162-Historical Market Data Service error message:Trading TWS session is connected from a different IP address--

BTW: Does anybody know, how one can subscribe market data explicitly for the paper account (sharing disabled)?

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Interesting, I’m seeing something similar.

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I run live and paper TWS on the same computer. I have a number of API clients, some of which run on the same computer as the TWS instances, and others on several other computers.

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Until today this has worked faultlessly for years.

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But today the paper TWS is receiving no market data at all, while the live TWS is perfectly fine.

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I’ve checked in Account Management to ensure the data sharing option was still set, and it is (I hadn’t been near Account Management for weeks, but I had to make sure it hadn’t somehow been reset by IB).

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I’ve submitted a ticket to IB. I hope they fix this soon, as I used the paper TWS pretty much all the time for testing my trading platform.

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Just for the record, live TWS is 10.19, paper TWS is 10.25.

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Richard

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From: [email protected] <[email protected]> On Behalf Of Evgeni Andreyev
Sent: Thursday, September 14, 2023 11:52 AM
To: [email protected]
Subject: Re: [TWS API] Market data sharing between Live and Paper account

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Up until today, there was no problem running both Live and Paper Trading account connections (2 IBG instances) on the same computer , and occasionally establishing a connection to a Paper trading account from an API client? on a different computer.

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But from today, i have started getting:

Error 162, reqId 3: Historical Market Data Service error message:Trading TWS session is connected from a different IP address,...

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when it is clearly not.

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