Downgrade to 1.16.5

go.sum

@@ -1,3 +1,5 @@
+github.com/Tnze/go-mc v1.16.5 h1:U7m0C6U2kLo6LAIjCA7I/MX1CiCEGSUMpg1Ozs8Bgf8=
+github.com/Tnze/go-mc v1.16.5/go.mod h1:t0AI38F1BEmmy8/uLhr9RCOUeDbBj3oUNQH9akjzMc0=
 github.com/Tnze/go-mc v1.17.1 h1:Dt5xBw3fPQTMIgH4831njCqF35YJ5k3tfw1H5p379UA=
 github.com/Tnze/go-mc v1.17.1/go.mod h1:t0AI38F1BEmmy8/uLhr9RCOUeDbBj3oUNQH9akjzMc0=
 github.com/go-ldap/ldap v3.0.3+incompatible h1:HTeSZO8hWMS1Rgb2Ziku6b8a7qRIZZMHjsvuZyatzwk=

minecraft/server.go

@@ -13,9 +13,9 @@ import (
 )
 
 const (
-	PlayerPositionAndLookClientbound = 0x38
-	JoinGame                         = 0x26
-	ProtocolVersion                  = 756
+	PlayerPositionAndLookClientbound = 0x34
+	JoinGame                         = 0x24
+	ProtocolVersion                  = 754
 	MaxPlayer                        = 50
 )
 
@@ -101,7 +101,6 @@ func (s *Server) handlePlaying(conn net.Conn, protocol int32) {
 		pk.Float(0), pk.Float(0), // Yaw Pitch
 		pk.Byte(0),        // flag
 		pk.VarInt(0),      // TP ID
-		pk.Boolean(false), // Dismount vehicle
 	)); err != nil {
 		log.Printf("Login failed on sending PlayerPositionAndLookClientbound: %v", err)
 		return

minecraft/status.go

@@ -51,7 +51,7 @@ func listResp() string {
 		FavIcon     string       `json:"favicon,omitempty"`
 	}
 
-	list.Version.Name = "1.17.1"
+	list.Version.Name = "1.16.5"
 	list.Version.Protocol = ProtocolVersion
 	list.Players.Max = MaxPlayer
 	list.Players.Online = 0