IQFeed intermittent errors on downloading data

[kdoren]

When using IQFeed and Downloading data for an instrument list in the Historical Data Manager, sometimes it will stop briefly at one of the instruments (maybe 10 seconds), then bring up an error message box with the error:

"Error on reloading data: E. Could not connect to History socket (Panic)"

If I re-download the same instrument list, it might download the entire list with no errors, or it might error on a different instrument, but the errors if they happen seem to be random and not related to a particular instrument.

Frequency is on the order of 1 error out of 100 symbols when downloading 5 days of 1-minute data.

[NinjaTrader_Dierk]

I'll contact IQFeed support. Thanks

[molecool]

On my end it often simply freezes the entire app - need to kill the process, then remove all the historic data (which is often corrupted), clean the DB, etc. It's a pain - those guys at IQData never got that interface to work right - please get on them to finally fix this once and for all.

[NinjaTrader_Dierk]

Here is the feedback I got from IQFeed support:

This error is generated whenever IQFeed is unable to establish a connection to their history servers for a request. Any number of issues can cause this type of behavior including firewall software on the PC or an unstable network connection between the users PC and the IQFeed servers. In addition to this, IQFeed support has acknowledged an increase in reports of this sort of behavior from the feed in recent times and will be making changes to better manage this behavior in the upcoming release of IQFeed 4.7.