Turn Server notworking.

[tvtoanit]

My setting is:
var ip = "103.237.144.249";
settings.AdminName = "toan1";
settings.AdminPass = "toan2";
settings.Realm = ip;
settings.TurnUdpPort = 3478;
settings.TurnTcpPort = 3478;
settings.TurnTlsPort = 44344;
settings.PublicIp = IPAddress.Parse(ip);
But webrtc not connect when my code js:
var connection = new RTCPeerConnection({ "iceServers": b.server });