diff --git a/.ci/start-se-openvpn.sh b/.ci/start-se-openvpn.sh
index c384f80a..07019312 100755
--- a/.ci/start-se-openvpn.sh
+++ b/.ci/start-se-openvpn.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 set -eux
 
@@ -8,6 +8,30 @@ cd $BUILD_BINARIESDIRECTORY
 
 ./vpnserver start
 
+#
+# wait until server listen 443
+#
+set +e
+started="false"
+for i in 1 2 3 4 5 6
+do
+    s=$(echo exit | telnet 127.0.0.1 443 | grep "Connected")
+    if [ "$s" != "" ]
+    then
+       started="true"
+       break
+    fi
+    sleep 10  
+done
+
+set -e
+
+if [ "$started" == "false" ]
+then
+   echo "vpnserver is not listening 127.0.0.1:443"
+   exit 1
+fi
+
 ./vpncmd 127.0.0.1:443 /SERVER /HUB:DEFAULT /CMD:SecureNatEnable
 ./vpncmd 127.0.0.1:443 /SERVER /CMD:"ProtoOptionsSet OpenVPN /NAME:Enabled /VALUE:True"
 ./vpncmd 127.0.0.1:443 /SERVER /CMD:"PortsUDPSet 1194"