diff --git a/wifi.ino b/wifi.ino
index 9e6dfa9..b43edb3 100644
--- a/wifi.ino
+++ b/wifi.ino
@@ -3,6 +3,8 @@
 
 const char *ssid = "miura2g"; // 802.11b/g (2.4GHz)only. 5GHz is not supported.
 const char *password = "jikken2022";
+
+// const char *ntpserver = "192.168.11.11"; //実験室ローカルNTPサーバ
 const char *ntpserver = "ntp.nict.jp";
 
 void wifi_setup()