I created one environment. One Aliyun server and one TencentCloud server. Aliyun serves as the server and TencentCloud serves as the client. Client ping Server is OK. But when I execute client app, it fails：

   TencentCloud(client) -------------Aliyun(server)(public ip: 111.67.198.×××)

[root@localhost example_apps]# ./server -s 0.0.0.0:12346
Deprecated: NewTUN(..) may be removed in the future. Please use New() instead.
INFO[0000] Interface allocated:tun0:192.168.3.1/24

[root@k8s-master example_apps]# ./client -s 111.67.198.×××:12346
Deprecated: NewTUN(..) may be removed in the future. Please use New() instead.
2022/10/13 09:38:53 Interface allocated: tun0
panic: NO_ERROR: Handshake did not complete in time

goroutine 1 [running]:
main.main()
/opt/golang/gopath/src/github.com/zartbot/quicsr/quic-tun/client/client.go:81 +0x7f3

==========================
While client ping server is OK:

[root@k8s-master example_apps]# ping 111.67.198.×××
PING 111.67.198.161 (111.67.198.161) 56(84) bytes of data.
64 bytes from 111.67.198.161: icmp_seq=1 ttl=249 time=26.10 ms
64 bytes from 111.67.198.161: icmp_seq=2 ttl=249 time=27.7 ms

What's wrong with me?