diff --git a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
index 6dd73df72..440ded684 100644
--- a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
+++ b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
@@ -290,6 +290,11 @@ function settings_add()
 	local tcp_keepalive_time = luci.http.formvalue("tcp_keepalive_time")
 	luci.sys.exec("sysctl -w net.ipv4.tcp_keepalive_time=%s" % tcp_keepalive_time)
 	luci.sys.exec("sed -i 's:^net.ipv4.tcp_keepalive_time=[0-9]*:net.ipv4.tcp_keepalive_time=%s:' /etc/sysctl.d/zzz_openmptcprouter.conf" % tcp_keepalive_time)
+
+	-- Set tcp_fin_timeout
+	local tcp_fin_timeout = luci.http.formvalue("tcp_fin_timeout")
+	luci.sys.exec("sysctl -w net.ipv4.tcp_fin_timeoute=%s" % tcp_fin_timeout)
+	luci.sys.exec("sed -i 's:^net.ipv4.tcp_fin_timeout=[0-9]*:net.ipv4.tcp_fin_timeout=%s:' /etc/sysctl.d/zzz_openmptcprouter.conf" % tcp_fin_timeout)
 	
 	-- Disable IPv6
 	local disable_ipv6 = luci.http.formvalue("disable_ipv6") or 0
diff --git a/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm b/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm
index 6d7d64e16..be78b6187 100644
--- a/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm
+++ b/luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm
@@ -13,6 +13,12 @@
 		    <input type="text" name="tcp_keepalive_time" class="cbi-input-text" value="<%=tonumber((luci.sys.exec("sysctl net.ipv4.tcp_keepalive_time")):match(" %d+"))%>">
 		</div>
 	    </div>
+	    <div class="cbi-value">
+	        <label class="cbi-value-title"><%:IPv4 TCP FIN timeout%></label>
+	        <div class="cbi-value-field">
+		    <input type="text" name="tcp_fin_timeout" class="cbi-input-text" value="<%=tonumber((luci.sys.exec("sysctl net.ipv4.tcp_fin_timeout")):match(" %d+"))%>">
+		</div>
+	    </div>
 	    <div class="cbi-value">
 		<label class="cbi-value-title"><%:Disable IPv6%></label>
 		<div class="cbi-value-field">
diff --git a/luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf b/luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf
index 263aaa631..0334d29a9 100644
--- a/luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf
+++ b/luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf
@@ -1,2 +1,3 @@
 net.ipv4.tcp_keepalive_time=7200
-net.ipv6.conf.all.disable_ipv6=0
\ No newline at end of file
+net.ipv6.conf.all.disable_ipv6=0
+net.ipv4.tcp_fin_timeout=20
\ No newline at end of file