diff --git a/go.mod b/go.mod
index 55159d2..503cfb1 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/fumiama/WireGold
 go 1.20
 
 require (
-	github.com/FloatTech/ttl v0.0.0-20240715074357-190755f3fece
+	github.com/FloatTech/ttl v0.0.0-20240716161252-965925764562
 	github.com/RomiChan/syncx v0.0.0-20240418144900-b7402ffdebc7
 	github.com/fumiama/blake2b-simd v0.0.0-20220412110131-4481822068bb
 	github.com/fumiama/go-base16384 v1.7.0
diff --git a/go.sum b/go.sum
index 0f278bb..16034d4 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/FloatTech/ttl v0.0.0-20240715074357-190755f3fece h1:RIrGO+hIOoXxUh0T3TDaWNvinkXH9S2i12cWivT2MZ4=
-github.com/FloatTech/ttl v0.0.0-20240715074357-190755f3fece/go.mod h1:fHZFWGquNXuHttu9dUYoKuNbm3dzLETnIOnm1muSfDs=
+github.com/FloatTech/ttl v0.0.0-20240716161252-965925764562 h1:snfw7FNFym1eNnLrQ/VCf80LiQo9C7jHgrunZDwiRcY=
+github.com/FloatTech/ttl v0.0.0-20240716161252-965925764562/go.mod h1:fHZFWGquNXuHttu9dUYoKuNbm3dzLETnIOnm1muSfDs=
 github.com/RomiChan/syncx v0.0.0-20240418144900-b7402ffdebc7 h1:S/ferNiehVjNaBMNNBxUjLtVmP/YWD6Yh79RfPv4ehU=
 github.com/RomiChan/syncx v0.0.0-20240418144900-b7402ffdebc7/go.mod h1:vD7Ra3Q9onRtojoY5sMCLQ7JBgjUsrXDnDKyFxqpf9w=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
diff --git a/gold/p2p/tcp/tcp.go b/gold/p2p/tcp/tcp.go
index c028c7a..bd5f75c 100644
--- a/gold/p2p/tcp/tcp.go
+++ b/gold/p2p/tcp/tcp.go
@@ -136,6 +136,7 @@ func (conn *Conn) receive(tcpconn *net.TCPConn, hasvalidated bool) {
 		peerstimeout = time.Second * 30
 	}
 	peerstimeout *= 2
+	defer conn.peers.Delete(ep.String())
 	for {
 		r := &connrecv{addr: ep}
 		if conn.addr == nil || conn.lstn == nil || conn.peers == nil || conn.recv == nil {
@@ -234,7 +235,9 @@ func (conn *Conn) WriteToPeer(b []byte, ep p2p.EndPoint) (n int, err error) {
 	if blen >= 65536 {
 		return 0, errors.New("data size " + strconv.Itoa(blen) + " is too large")
 	}
+	retried := false
 	tcpconn := conn.peers.Get(tcpep.String())
+RECONNECT:
 	if tcpconn == nil {
 		dialtimeout := tcpep.dialtimeout
 		if dialtimeout < time.Second {
@@ -269,5 +272,13 @@ func (conn *Conn) WriteToPeer(b []byte, ep p2p.EndPoint) (n int, err error) {
 		len: uint16(blen),
 		dat: b,
 	})
+	if err != nil {
+		conn.peers.Delete(tcpep.String())
+		if !retried {
+			retried = true
+			tcpconn = nil
+			goto RECONNECT
+		}
+	}
 	return int(cnt) - 3, err
 }