i got error message when i try to connect

[MolnarMilan000]

.\tunn.exe -c config.json
10:50:17 connecting to fiercecipher2878.v4y.hu:443...
10:50:17 connected to fiercecipher2878.v4y.hu:443
10:50:17 handshaking using www.one.hu/one-fiok/mobil...
10:50:17 handshaked
10:50:17 sending payload...
10:50:17 dial err: EOF

[MolnarMilan000]

how can i correctly configured server side to working?

[MolnarMilan000]

.\tunn.exe -c config.json
10:55:10 connecting to fiercecipher2878.v4y.hu:443...
10:55:10 connected to fiercecipher2878.v4y.hu:443
10:55:10 handshaking using www.one.hu/one-fiok/mobil...
10:55:10 dial err: tls: first record does not look like a TLS handshake

[MolnarMilan000]

this error when i try to use with 443 port and mobile wifi router with internet-less sim card.

[ayanrajpoot10]

Show me your config so I can see what’s wrong.