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You need to open port 9000: - please find test code below including the set_proxy_port function (must include the L at the end eg 9000L). This should work. Let me know how you get on. This is for windows operating system - if you are using the standalone mac proxy use port 36036.
library(devtools) install_github("ahmedmohamedali/eikonapir") library(eikonapir) eikonapir::set_proxy_port(9000L) eikonapir::set_app_id('Your App Key Here') result <- get_symbology(list("MSFT.O", "GOOG.O", "IBM.N"),"RIC",list("ISIN"),raw_ouput = FALSE,debug=FALSE) print(result)