diff --git a/transport/hysteria/conns/faketcp/obfs.go b/transport/hysteria/conns/faketcp/obfs.go
index 9897accc..35f7d013 100644
--- a/transport/hysteria/conns/faketcp/obfs.go
+++ b/transport/hysteria/conns/faketcp/obfs.go
@@ -1,7 +1,6 @@
 package faketcp
 
 import (
-	"github.com/Dreamacro/clash/log"
 	"github.com/Dreamacro/clash/transport/hysteria/obfs"
 	"net"
 	"sync"
@@ -14,7 +13,6 @@ const udpBufferSize = 65535
 type ObfsFakeTCPConn struct {
 	orig       *TCPConn
 	obfs       obfs.Obfuscator
-	closed     bool
 	readBuf    []byte
 	readMutex  sync.Mutex
 	writeBuf   []byte
@@ -33,13 +31,7 @@ func NewObfsFakeTCPConn(orig *TCPConn, obfs obfs.Obfuscator) *ObfsFakeTCPConn {
 func (c *ObfsFakeTCPConn) ReadFrom(p []byte) (int, net.Addr, error) {
 	for {
 		c.readMutex.Lock()
-		if c.closed {
-			log.Infoln("read faketcp obfs before")
-		}
 		n, addr, err := c.orig.ReadFrom(c.readBuf)
-		if c.closed {
-			log.Infoln("read faketcp obfs after")
-		}
 		if n <= 0 {
 			c.readMutex.Unlock()
 			return 0, addr, err
@@ -69,7 +61,6 @@ func (c *ObfsFakeTCPConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
 }
 
 func (c *ObfsFakeTCPConn) Close() error {
-	c.closed = true
 	return c.orig.Close()
 }
 
diff --git a/transport/hysteria/conns/udp/obfs.go b/transport/hysteria/conns/udp/obfs.go
index da637d0f..d63034b5 100644
--- a/transport/hysteria/conns/udp/obfs.go
+++ b/transport/hysteria/conns/udp/obfs.go
@@ -1,7 +1,6 @@
 package udp
 
 import (
-	"github.com/Dreamacro/clash/log"
 	"github.com/Dreamacro/clash/transport/hysteria/obfs"
 	"net"
 	"sync"
@@ -17,7 +16,6 @@ type ObfsUDPConn struct {
 	readMutex  sync.Mutex
 	writeBuf   []byte
 	writeMutex sync.Mutex
-	closed     bool
 }
 
 func NewObfsUDPConn(orig net.PacketConn, obfs obfs.Obfuscator) *ObfsUDPConn {
@@ -32,13 +30,7 @@ func NewObfsUDPConn(orig net.PacketConn, obfs obfs.Obfuscator) *ObfsUDPConn {
 func (c *ObfsUDPConn) ReadFrom(p []byte) (int, net.Addr, error) {
 	for {
 		c.readMutex.Lock()
-		if c.closed {
-			log.Infoln("read udp obfs before")
-		}
 		n, addr, err := c.orig.ReadFrom(c.readBuf)
-		if c.closed {
-			log.Infoln("read udp obfs after")
-		}
 		if n <= 0 {
 			c.readMutex.Unlock()
 			return 0, addr, err
@@ -68,7 +60,6 @@ func (c *ObfsUDPConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
 }
 
 func (c *ObfsUDPConn) Close() error {
-	c.closed = true
 	return c.orig.Close()
 }
 
diff --git a/transport/hysteria/conns/wechat/obfs.go b/transport/hysteria/conns/wechat/obfs.go
index a63b85d4..815aa52f 100644
--- a/transport/hysteria/conns/wechat/obfs.go
+++ b/transport/hysteria/conns/wechat/obfs.go
@@ -15,7 +15,6 @@ const udpBufferSize = 65535
 type ObfsWeChatUDPConn struct {
 	orig       net.PacketConn
 	obfs       obfs.Obfuscator
-	closed     bool
 	readBuf    []byte
 	readMutex  sync.Mutex
 	writeBuf   []byte
@@ -37,13 +36,7 @@ func NewObfsWeChatUDPConn(orig net.PacketConn, obfs obfs.Obfuscator) *ObfsWeChat
 func (c *ObfsWeChatUDPConn) ReadFrom(p []byte) (int, net.Addr, error) {
 	for {
 		c.readMutex.Lock()
-		if c.closed {
-			log.Infoln("read wechat obfs before")
-		}
 		n, addr, err := c.orig.ReadFrom(c.readBuf)
-		if c.closed {
-			log.Infoln("read wechat obfs after")
-		}
 		if n <= 13 {
 			c.readMutex.Unlock()
 			return 0, addr, err
@@ -84,7 +77,6 @@ func (c *ObfsWeChatUDPConn) WriteTo(p []byte, addr net.Addr) (n int, err error)
 }
 
 func (c *ObfsWeChatUDPConn) Close() error {
-	c.closed = true
 	return c.orig.Close()
 }
 
diff --git a/transport/hysteria/transport/client.go b/transport/hysteria/transport/client.go
index b4b52501..9d0158e5 100644
--- a/transport/hysteria/transport/client.go
+++ b/transport/hysteria/transport/client.go
@@ -15,10 +15,7 @@ import (
 )
 
 type ClientTransport struct {
-	Dialer        *net.Dialer
-	PrefEnabled   bool
-	PrefIPv6      bool
-	PrefExclusive bool
+	Dialer *net.Dialer
 }
 
 func (ct *ClientTransport) quicPacketConn(proto string, server string, obfs obfs.Obfuscator, dialer PacketDialer) (net.PacketConn, error) {