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 0334d29a9..6f19bb344 100644
--- a/luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf
+++ b/luci-app-openmptcprouter/root/etc/sysctl.d/zzz_openmptcprouter.conf
@@ -1,3 +1,3 @@
 net.ipv4.tcp_keepalive_time=7200
 net.ipv6.conf.all.disable_ipv6=0
-net.ipv4.tcp_fin_timeout=20
\ No newline at end of file
+net.ipv4.tcp_fin_timeout=40
\ No newline at end of file