diff --git a/TLSharp.Core/Network/TcpTransport.cs b/TLSharp.Core/Network/TcpTransport.cs
index e0f6e1f..b33b384 100644
--- a/TLSharp.Core/Network/TcpTransport.cs
+++ b/TLSharp.Core/Network/TcpTransport.cs
@@ -16,10 +16,11 @@ namespace TLSharp.Core.Network
         {
             if (handler == null)
             {
-                _tcpClient = new TcpClient();
-
                 var ipAddress = IPAddress.Parse(address);
-                _tcpClient.Connect(ipAddress, port);
+                var endpoint = new IPEndPoint(ipAddress, port);
+
+                _tcpClient = new TcpClient(endpoint);
+                _tcpClient.Connect(endpoint);
             }
             else
                 _tcpClient = handler(address, port);
diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 576a1dd..61fd9ca 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -89,7 +89,7 @@ namespace TLSharp.Core
                 exported = await SendRequestAsync<TLExportedAuthorization>(exportAuthorization);
             }
 
-            var dc = dcOptions.First(d => d.Id == dcId && !d.Ipv6);
+            var dc = dcOptions.First(d => d.Id == dcId);
             var dataCenter = new DataCenter (dcId, dc.IpAddress, dc.Port);
 
             _transport = new TcpTransport(dc.IpAddress, dc.Port, _handler);