- Home /
System.NotSupportedException: This protocol version is not supported
when use TcpClient connect function, this exception happen. My code work on wifi , 4g , and ios 5g, but some android device which is on 5g signal get this exception, any one can help me? I try use new TcpClient(AddressFamily.InterNetwork), not get exception but can not connect to server.
Comment
Your answer
![](https://koobas.hobune.stream/wayback/20220613042637im_/https://answers.unity.com/themes/thub/images/avi.jpg)