diff --git a/ipacm/src/IPACM_Wan.cpp b/ipacm/src/IPACM_Wan.cpp
index 87ecb6d..a902457 100644
--- a/ipacm/src/IPACM_Wan.cpp
+++ b/ipacm/src/IPACM_Wan.cpp
@@ -4375,7 +4375,11 @@
 int IPACM_Wan::handle_down_evt()
 {
 	int res = IPACM_SUCCESS;
-	uint32_t i;
+	uint32_t i, tether_total;
+	int ipa_if_num_tether_tmp[IPA_MAX_IFACE_ENTRIES];
+
+	tether_total = 0;
+	memset(ipa_if_num_tether_tmp, 0, IPA_MAX_IFACE_ENTRIES);
 
 	IPACMDBG_H(" wan handle_down_evt \n");
 
@@ -4396,22 +4400,61 @@
 	/* make sure default routing rules and firewall rules are deleted*/
 	if (active_v4)
 	{
-	   	if (rx_prop != NULL)
-	    {
+		if (rx_prop != NULL)
+		{
 			del_dft_firewall_rules(IPA_IP_v4);
 		}
 		handle_route_del_evt(IPA_IP_v4);
 		IPACMDBG_H("Delete default v4 routing rules\n");
+
+#ifdef FEATURE_IPA_ANDROID
+		/* posting wan_down_tether for lan clients */
+#ifdef FEATURE_IPACM_HAL
+		IPACMDBG_H("Posting IPA_WAN_DOWN_TETHER_EVENT for IPV4\n");
+		post_wan_down_tether_evt(IPA_IP_v4, 0);
+#else
+		for (i=0; i < IPACM_Wan::ipa_if_num_tether_v4_total; i++)
+		{
+			ipa_if_num_tether_tmp[i] = IPACM_Wan::ipa_if_num_tether_v4[i];
+		}
+		tether_total = IPACM_Wan::ipa_if_num_tether_v4_total;
+		for (i=0; i < tether_total; i++)
+		{
+			post_wan_down_tether_evt(IPA_IP_v4, ipa_if_num_tether_tmp[i]);
+			IPACMDBG_H("post_wan_down_tether_v4 iface(%d: %s)\n",
+				i, IPACM_Iface::ipacmcfg->iface_table[ipa_if_num_tether_tmp[i]].iface_name);
+		}
+#endif
+#endif
 	}
 
 	if (active_v6)
 	{
-	   	if (rx_prop != NULL)
-	    {
+		if (rx_prop != NULL)
+		{
 			del_dft_firewall_rules(IPA_IP_v6);
 		}
 		handle_route_del_evt(IPA_IP_v6);
 		IPACMDBG_H("Delete default v6 routing rules\n");
+#ifdef FEATURE_IPA_ANDROID
+		/* posting wan_down_tether for lan clients */
+#ifdef FEATURE_IPACM_HAL
+		IPACMDBG_H("Posting IPA_WAN_DOWN_TETHER_EVENT for IPV6\n");
+		post_wan_down_tether_evt(IPA_IP_v6, 0);
+#else
+		for (i=0; i < IPACM_Wan::ipa_if_num_tether_v6_total; i++)
+		{
+			ipa_if_num_tether_tmp[i] = IPACM_Wan::ipa_if_num_tether_v6[i];
+		}
+		tether_total = IPACM_Wan::ipa_if_num_tether_v6_total;
+		for (i=0; i < tether_total; i++)
+		{
+			post_wan_down_tether_evt(IPA_IP_v6, ipa_if_num_tether_tmp[i]);
+			IPACMDBG_H("post_wan_down_tether_v6 iface(%d: %s)\n",
+				i, IPACM_Iface::ipacmcfg->iface_table[ipa_if_num_tether_tmp[i]].iface_name);
+		}
+#endif
+#endif
 	}
 
 	/* Delete default v4 RT rule */
@@ -4420,7 +4463,7 @@
 		IPACMDBG_H("Delete default v4 routing rules\n");
 		if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[0], IPA_IP_v4) == false)
 		{
-		   IPACMERR("Routing rule deletion failed!\n");
+			IPACMERR("Routing rule deletion failed!\n");
 			res = IPACM_FAILURE;
 			goto fail;
 		}
@@ -4755,6 +4798,10 @@
 			handle_route_del_evt_ex(IPA_IP_v4);
 #ifdef FEATURE_IPA_ANDROID
 			/* posting wan_down_tether for all lan clients */
+#ifdef FEATURE_IPACM_HAL
+			IPACMDBG_H("Posting IPA_WAN_DOWN_TETHER_EVENT for IPV4\n");
+			post_wan_down_tether_evt(IPA_IP_v4, 0);
+#else
 			for (i=0; i < IPACM_Wan::ipa_if_num_tether_v4_total; i++)
 			{
 				ipa_if_num_tether_tmp[i] = IPACM_Wan::ipa_if_num_tether_v4[i];
@@ -4767,11 +4814,16 @@
 					i, IPACM_Iface::ipacmcfg->iface_table[ipa_if_num_tether_tmp[i]].iface_name);
 			}
 #endif
+#endif
 			IPACM_Wan::wan_up_v6 = false;
 			del_wan_firewall_rule(IPA_IP_v6);
 			handle_route_del_evt_ex(IPA_IP_v6);
 #ifdef FEATURE_IPA_ANDROID
 			/* posting wan_down_tether for all lan clients */
+#ifdef FEATURE_IPACM_HAL
+                        IPACMDBG_H("Posting IPA_WAN_DOWN_TETHER_EVENT for IPV6\n");
+                        post_wan_down_tether_evt(IPA_IP_v6, 0);
+#else
 			for (i=0; i < IPACM_Wan::ipa_if_num_tether_v6_total; i++)
 			{
 				ipa_if_num_tether_tmp[i] = IPACM_Wan::ipa_if_num_tether_v6[i];
@@ -4784,6 +4836,7 @@
 					i, IPACM_Iface::ipacmcfg->iface_table[ipa_if_num_tether_tmp[i]].iface_name);
 			}
 #endif
+#endif
 			memset(IPACM_Wan::wan_up_dev_name, 0, sizeof(IPACM_Wan::wan_up_dev_name));
 
 			install_wan_filtering_rule(false);