Lightstreamer unknown error using C# client

[gianluca.finocchiaro]

Hi ynor,

it looks like that Gain Capital is using version 5.1.2 of Lightstreamer, as you can see here (expand Streaming API):
http://docs.labs.cityindex.com/#Gett...arted%7C_____1

Therefor you must use a compatible .NET Client SDK:
https://www.lightstreamer.com/repo/d...#dotnet_client

Please let us know if still experience any issue.

Best,
Gianluca