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"I've been using Neoticker RT with IQFeed for two months, and I'm very happy with both of the products (I've had IQFeed for two years with very few complaints). The service from both companies is exceptional." - Comment from Public Forum
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"I just wanted to say how happy I am with your service. I was able to download the API docs last week and I was able to replicate Interactive Brokers historical bar queries and realtime bar queries over the weekend. That was about one of the fastest integrations that I've ever done and it works perfectly!!!!" - Comment from Jason via Email
"I'm very glad I switched to IQFeed. It's working perfectly with no lag, even during fast market conditions." - Comment from Andy via Email
"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles
"Thanks for the great product and support. During this week of high volume trading, my QuoteTracker + IQ Feed setup never missed a beat. Also, thanks for your swiftness in responding to data issues. I was on ******* for a few years before I made the switch over early this year, and wish I had done it a long time ago." - Comment from Ken
"I started a trial a few weeks back before the market went wild. DTN.IQ didn’t miss anything and beat my other provider. I decided to stay with you because of the great service through all the volatility." - Comment from Mike
"IQFeed version 4 is a real screamer compared to anything else I have seen." - Comment from Tom
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HenriM
-Interested User-
Posts: 3
Joined: Sep 7, 2019
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Posted: Sep 7, 2019 08:32 PM
Msg. 1 of 6
I'm getting response "S,CURRENT PROTOCOL,6.0," on request S,SET PROTOCOL,6.0 and response "E,6.1 is not a valid protocol.," on request S,SET PROTOCOL,6.1 I'm using same code and only change 6.0 to 6.1 in it. 6.0 protocol works fine, but it doesn't recognize new field "Most Recent Trade Aggressor" Any ideas? Thank you
Henri
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altmany
-Interested User-
Posts: 73
Joined: Jul 30, 2018
IQML - IQFeed-MATLAB connector
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Posted: Sep 8, 2019 01:58 AM
Msg. 2 of 6
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HenriM
-Interested User-
Posts: 3
Joined: Sep 7, 2019
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Posted: Sep 8, 2019 11:11 AM
Msg. 3 of 6
Thank you Yair, I should have mentioned that before I posted this problem I have downloaded client 6.1.0.20 from September 4th but I always just download and install latest version of client without uninstalling anything. Hopefully that is the correct procedure. I have just also checked VB value of System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString() It retrieves value 6.1.0.0, which hopefully also indicates that protocol 6.1 has been installed correctly. Thank you
Henri
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DTN_Gary_Stephen
-DTN Guru-
Posts: 396
Joined: Jul 3, 2019
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Posted: Sep 13, 2019 08:52 AM
Msg. 4 of 6
Henri, Yair is correct - if you're getting the message "E,6.1 is not a valid protocol", the problem is most likely that you're still using client software version 6.0. We just released 6.1.0.20 last week; it can be downloaded from the usual download page, http://www.iqfeed.net/index.cfm?displayaction=support§ion=downloadHenri, my logs show that you're still connecting using client software version 6.0.1.1. That would explain why you're getting this error message. Check your install, update to 6.1.0.20 if necessary, and try again. There are two ways you can determine the version number you have currently: 1. If you are not connected, launch the Diagnostics app. Click Test button on the IQConnect tab. The second line of the output will say "Loading IQFeed with (IQFeed Diagnostics, 6.x.x.x)". That's the version number. 2. If you are connected, right-click the IQFeed icon in the system tray, and select Feed Stats. "IQFeed Version" will be one of the pieces of information, on the right hand side. Please feel free to contact me directly if I can help! Sincerely, Gary Stephen DTN IQFeed Implementation Support Specialist
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HenriM
-Interested User-
Posts: 3
Joined: Sep 7, 2019
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Posted: Sep 13, 2019 10:20 AM
Msg. 5 of 6
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DTN_Gary_Stephen
-DTN Guru-
Posts: 396
Joined: Jul 3, 2019
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Posted: Sep 13, 2019 10:21 AM
Msg. 6 of 6
OK, that makes sense. Let me know if you have any further questions or issues!
Sincerely, Gary Stephen DTN IQFeed Implementation Support Specialist
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