diff --git a/README.md b/README.md
index b60582f..382e17b 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,9 @@ Internet-detector is an application for checking the availability of the Interne
 **OpenWrt >= 21.02:**
 
     opkg update
-    wget --no-check-certificate -O /tmp/internet-detector_1.0-2_all.ipk https://github.com/gSpotx2f/packages-openwrt/raw/master/current/internet-detector_1.0-2_all.ipk
-    opkg install /tmp/internet-detector_1.0-2_all.ipk
-    rm /tmp/internet-detector_1.0-2_all.ipk
+    wget --no-check-certificate -O /tmp/internet-detector_1.0-3_all.ipk https://github.com/gSpotx2f/packages-openwrt/raw/master/current/internet-detector_1.0-3_all.ipk
+    opkg install /tmp/internet-detector_1.0-3_all.ipk
+    rm /tmp/internet-detector_1.0-3_all.ipk
     /etc/init.d/internet-detector start
     /etc/init.d/internet-detector enable
 
diff --git a/internet-detector/Makefile b/internet-detector/Makefile
index f810124..89ab147 100644
--- a/internet-detector/Makefile
+++ b/internet-detector/Makefile
@@ -6,7 +6,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=internet-detector
 PKG_VERSION:=1.0
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 PKG_MAINTAINER:=gSpot <https://github.com/gSpotx2f/luci-app-internet-detector>
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/internet-detector/files/usr/bin/internet-detector b/internet-detector/files/usr/bin/internet-detector
index b0049e5..aefd6bf 100755
--- a/internet-detector/files/usr/bin/internet-detector
+++ b/internet-detector/files/usr/bin/internet-detector
@@ -260,6 +260,7 @@ function InternetDetector:TCPConnectionToHost(host, port)
 						io.stdout:write(string.format(
 							"SOCKET ERROR: %s, %s\n", errMsg, errNum))
 					end
+					unistd.close(sock)
 					return retCode
 				end
 			end
@@ -299,6 +300,7 @@ function InternetDetector:TCPConnectionToHost(host, port)
 				io.stdout:flush()
 			end
 
+			socket.shutdown(sock, socket.SHUT_RDWR)
 			unistd.close(sock)
 			retCode = success and 0 or 1
 		end
diff --git a/internet-detector/files/usr/lib/internet-detector/mod_public_ip.lua b/internet-detector/files/usr/lib/internet-detector/mod_public_ip.lua
index 652a0c0..52df930 100644
--- a/internet-detector/files/usr/lib/internet-detector/mod_public_ip.lua
+++ b/internet-detector/files/usr/lib/internet-detector/mod_public_ip.lua
@@ -161,6 +161,7 @@ function Module:sendUDPMessage(message, server, port)
 						io.stdout:write(string.format(
 							"SOCKET ERROR: %s, %s\n", errMsg, errNum))
 					end
+					unistd.close(sock)
 					return retCode
 				end
 			end