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Renewal of root certificate of the wireless LAN/WiFi service (keiomobile2 / eduroam)

A certificate that is used by the "wireless LAN/WiFi Service (keiomobile2 / eduroam) password authentication method" renewed at around 8:30 a.m. on January 12, 2016.
Beginning on January 12, 2016, it will be necessary to have a new root certificate in order to use the wireless LAN/WiFi service.

If you don't use the wireless LAN/WiFi service from January 12, 2016, please be requested to perform the following procedure.

  • You will need to make the settings on each device or terminal that you use.

※Setting is necessary only when connecting using the ID/password authentication method (certificate that used an ITC account).
 It is not necessary when connecting by authentication that used keio.jp.(Users of the eduroam are requested to make settings to connect using)  If you do not know which the authentication method is, or whether or not setting is necessary, please perform the following procedure.

Case of iOS or OS X (iPhone/iPad/Macbook)

Beginning on January 12, 2016, when you have accessed keiomobile2 or eduroam, the certificate renewal dialog box will be displayed, so please make the setting by the following procedure.

 Reference: "WiFi connecting service (keiomobile2) for iOS/Mac OS X"
 ※ eduroam user set the connection by rereading SSID's keiomobile2 as eduroam.

Case of Windows

You will need to delete the existing setting for keiomobile2 / eduroam and perform resetting.
 Reference: "keiomobile2 setting deletion and resetting procedure (Windows)"
 ※ eduroam user set the connection by rereading SSID's keiomobile2 as eduroam.

Case of Android

For people who download the new root certificate

 Specify the new root certificate when connecting to keiomobile2 / eduroam beginning January 12, 2016.
  "Root certificate resetting procedure for Security Communication CA2"

To people who have not make settings to connect using the new certificate:

 You will need to perform resetting of keiomobile2 / eduroam.
  Reference: "Wireless LAN/WiFi service (keiomobile2) password authentication method"
  ※ eduroam user set the connection by rereading SSID's keiomobile2 as eduroam.

Last-Modified: January 12, 2016

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