szcxdave1988 Hi, I am using iOS Client SDK v. 1.2.6 build 74.24 to connect to server 5.2.1, cause forex server only support this version , my language is swift. when i open connection and it return connection timed out from the attached function, please help
Alessandro.Carioni Hello, The client 1.2.6 is very old and it hasn’t been supported for years. If possible, you should switch to a more recent version. Anyway, the reported error seems to suggest that the Lightstreamer server is unreachable. Can you confirm that the server address is correct and the server is indeed reachable from your device?