diff --git a/package/lean/shortcut-fe/fast-classifier/Makefile b/package/lean/shortcut-fe/fast-classifier/Makefile
index e62df6cea..09c1174dd 100644
--- a/package/lean/shortcut-fe/fast-classifier/Makefile
+++ b/package/lean/shortcut-fe/fast-classifier/Makefile
@@ -16,7 +16,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=fast-classifier
-PKG_RELEASE:=2
+PKG_RELEASE:=6
 
 include $(INCLUDE_DIR)/package.mk
 
diff --git a/package/lean/shortcut-fe/fast-classifier/src/fast-classifier.c b/package/lean/shortcut-fe/fast-classifier/src/fast-classifier.c
index 1deb1eb5f..944dfae38 100644
--- a/package/lean/shortcut-fe/fast-classifier/src/fast-classifier.c
+++ b/package/lean/shortcut-fe/fast-classifier/src/fast-classifier.c
@@ -451,8 +451,9 @@ static u32 fc_conn_hash(sfe_ip_addr_t *saddr, sfe_ip_addr_t *daddr,
  */
 static int fast_classifier_update_protocol(struct sfe_connection_create *p_sic, struct nf_conn *ct)
 {
-  #if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0) 
+  #if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
     struct net *net=NULL ;
+    struct nf_tcp_net *tn=NULL;
 	#endif
 	switch (p_sic->protocol) {
 	case IPPROTO_TCP:
@@ -464,9 +465,10 @@ static int fast_classifier_update_protocol(struct sfe_connection_create *p_sic,
 		p_sic->dest_td_max_window = ct->proto.tcp.seen[1].td_maxwin;
 		p_sic->dest_td_end = ct->proto.tcp.seen[1].td_end;
 		p_sic->dest_td_max_end = ct->proto.tcp.seen[1].td_maxend;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0) 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
 	net = nf_ct_net(ct);
-	if ((net&&net->ct.sysctl_no_window_check)
+	tn = nf_tcp_pernet(net);
+	if ((tn&&tn->tcp_no_window_check)
 #else
 	if (nf_ct_tcp_no_window_check
 #endif
diff --git a/package/lean/shortcut-fe/shortcut-fe/Makefile b/package/lean/shortcut-fe/shortcut-fe/Makefile
index 5712fe676..dd53042e5 100644
--- a/package/lean/shortcut-fe/shortcut-fe/Makefile
+++ b/package/lean/shortcut-fe/shortcut-fe/Makefile
@@ -16,7 +16,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=shortcut-fe
-PKG_RELEASE:=3
+PKG_RELEASE:=8
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -43,8 +43,6 @@ Shortcut is an in-Linux-kernel IP packet forwarding engine.
 endef
 
 define KernelPackage/shortcut-fe/install
-	$(INSTALL_DIR) $(1)/etc/init.d
-	$(INSTALL_BIN) ./files/etc/init.d/shortcut-fe $(1)/etc/init.d
 	$(INSTALL_DIR) $(1)/usr/bin
 	$(INSTALL_BIN) ./files/usr/bin/sfe_dump $(1)/usr/bin
 endef
diff --git a/package/lean/shortcut-fe/shortcut-fe/files/etc/init.d/shortcut-fe b/package/lean/shortcut-fe/shortcut-fe/files/etc/init.d/shortcut-fe
index dd666f8f0..838512a36 100755
--- a/package/lean/shortcut-fe/shortcut-fe/files/etc/init.d/shortcut-fe
+++ b/package/lean/shortcut-fe/shortcut-fe/files/etc/init.d/shortcut-fe
@@ -15,7 +15,7 @@
 
 #SFE connection manager has a lower priority, it should be started after other connection manager
 #to detect the existence of connection manager with higher priority
-START=99
+START=70
 
 have_cm() {
 	[ -d "/sys/kernel/debug/ecm" ] && echo 1 && return
diff --git a/package/lean/shortcut-fe/shortcut-fe/src/sfe_cm.c b/package/lean/shortcut-fe/shortcut-fe/src/sfe_cm.c
index 3c68ff37f..2d3f79a04 100644
--- a/package/lean/shortcut-fe/shortcut-fe/src/sfe_cm.c
+++ b/package/lean/shortcut-fe/shortcut-fe/src/sfe_cm.c
@@ -314,6 +314,7 @@ static unsigned int sfe_cm_post_routing(struct sk_buff *skb, int is_v4)
 	
 	#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
     struct net *net=NULL;
+    struct nf_tcp_net *tn=NULL;
 	#endif
 
 	/*
@@ -500,9 +501,10 @@ static unsigned int sfe_cm_post_routing(struct sk_buff *skb, int is_v4)
 		sic.dest_td_max_window = ct->proto.tcp.seen[1].td_maxwin;
 		sic.dest_td_end = ct->proto.tcp.seen[1].td_end;
 		sic.dest_td_max_end = ct->proto.tcp.seen[1].td_maxend;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0) 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
 	net = nf_ct_net(ct);
-	if ((net&&net->ct.sysctl_no_window_check)
+	tn = nf_tcp_pernet(net);
+	if ((tn&&tn->tcp_no_window_check)
 #else
 	if (nf_ct_tcp_no_window_check
 #endif