diff --git a/adapter/outbound/base.go b/adapter/outbound/base.go
index e4a553b9..c5901d7f 100644
--- a/adapter/outbound/base.go
+++ b/adapter/outbound/base.go
@@ -259,10 +259,11 @@ func (c *packetConn) ReaderReplaceable() bool {
 }
 
 func newPacketConn(pc net.PacketConn, a C.ProxyAdapter) C.PacketConn {
+	epc := N.NewEnhancePacketConn(pc)
 	if _, ok := pc.(syscall.Conn); !ok { // exclusion system conn like *net.UDPConn
-		pc = N.NewDeadlinePacketConn(pc) // most conn from outbound can't handle readDeadline correctly
+		epc = N.NewDeadlineEnhancePacketConn(epc) // most conn from outbound can't handle readDeadline correctly
 	}
-	return &packetConn{N.NewEnhancePacketConn(pc), []string{a.Name()}, a.Name(), utils.NewUUIDV4().String(), parseRemoteDestination(a.Addr())}
+	return &packetConn{epc, []string{a.Name()}, a.Name(), utils.NewUUIDV4().String(), parseRemoteDestination(a.Addr())}
 }
 
 func parseRemoteDestination(addr string) string {
diff --git a/common/net/deadline/packet.go b/common/net/deadline/packet.go
index 4f2e9111..38b5f579 100644
--- a/common/net/deadline/packet.go
+++ b/common/net/deadline/packet.go
@@ -128,6 +128,10 @@ type EnhancePacketConn struct {
 	enhancePacketConn packet.EnhancePacketConn
 }
 
+func NewEnhancePacketConn(pc packet.EnhancePacketConn) packet.EnhancePacketConn {
+	return NewPacketConn(pc).(packet.EnhancePacketConn)
+}
+
 func (c *EnhancePacketConn) WaitReadFrom() (data []byte, put func(), addr net.Addr, err error) {
 	select {
 	case result := <-c.resultCh:
diff --git a/common/net/packet.go b/common/net/packet.go
index 2895b537..261c721c 100644
--- a/common/net/packet.go
+++ b/common/net/packet.go
@@ -12,6 +12,7 @@ type EnhancePacketConn = packet.EnhancePacketConn
 
 var NewEnhancePacketConn = packet.NewEnhancePacketConn
 var NewDeadlinePacketConn = deadline.NewPacketConn
+var NewDeadlineEnhancePacketConn = deadline.NewEnhancePacketConn
 
 type threadSafePacketConn struct {
 	net.PacketConn