Kyoto University Integrated Network System (KUINS)


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Wireless LAN FAQ

The manual for connecting to a wireless LAN is available at

If you are unable to connect despite following the manual, Please check the following points.

(1) Is your ID, password valid?

  • For connecting to KUINS-Air, ECS-ID(Students)/SPS-ID(Faculty and Staff) is required.
    In order to check ECS-ID/SPS-ID is correct, please click one of the following links and confirm if you can successfully login.

    (KUMOI : Kyoto University Mail for Student)

    (KUMail : Kyoto University Mail for Faculty and Staff)

  • For connecting to eduroam, eduroam account or visitor account is required. (Please click manual for details.)
    Please be sure to enter ID, password correctly and also confirm the expiry date.

(2) Are you in the available area of KUINS Wi-Fi?
If radio wave is not strong enough, you will possibly fail to connect to Wi-Fi. Once you missed, the authentication may fail for some time. Please wait for a while then try again in the area where you can find the strong radio wave. The location of Wi-Fi access points is here.(Currently only in Japanese. Sorry.)

(3) Is the clock in your PC correct?
The connection error might occur if the clock in your PC/terminal is not correct. Please set the exact time and try again.

(4) Is the setting correct?
Even though you checked the above points but still cannot connect to KUINS-Air or eduroam, please delete the setting first then try to setup again. To delete the setting, please refer to I want to delete Wi-Fi setting.

(5) Android?
Please refer to (Android) I cannot click on "Connect" or cannot select "CA certificate".

(6) macOS,iPad,iPhone?
Please refer to (macOS, iPad, iPhone) Cannot connect to KUINS-Air.

Even though you checked the above points but still cannot connect to KUINS Wi-Fi, please write down the building name, room number and the date/time where/when you tried to connect, your ID (password is not necessary), the error message etc. in inquiry form.

Please refer to the below link in order to delete Wi-Fi setting.

DNS setting might not be "Automatic acquision". Please refer to the following web site and acquire the DNS server address automatically.

  • Windows
  • macOS(DNS Servers > Remove a DNS server from the list:)

If it does not recover, delete the settings once and set them again according to the manual.

Do not share ID and password. Please use KUINS device account if you can identify the co-owner, or please enter each time by referring to the following.

Because of the version up etc of Android OS, the setting might have been changed. If "Use system certificate" has been unavailable, or failture. Please download CA certificate from the following site.

Security Communication RootCA2 Repository "SCRoot2ca.cer".

you are asked to name the certificate when you click the download link. Assign a name as you like and click OK. Then downloading will be finished. Or, you need to download the certificate in your PC first, then save it in SD card. Install it in Android from [Settings > Security > install via SD card(storage)].please select the downloaded "SCRoot2ca.cer" file in CA certificate field when you configure the Wi-Fi connection.

If you cannot connect even after installing the above CA certificate, set the CA certificate to "unspecified" and do not verify the certificate. (However, the connection is less secure)

And enter "kyoto-u.ac.jp" for KUINS-Air or "federated-id.eduroam.jp" for eduroam. For the details of settings, please refer to each Android manual in the Usage section from the below link.

If you have configured your settings using "Kyodai Rakuraku setting tool", you may not be able to connect to KUINS-Air due to the renewal of the certificate of the authentication server of KUINS-Air. Please delete the "Kyodai Rakuraku Setting tool" and try to setup to KUINS-Air in the normal way.

how to delete "Kyodai Rakuraku setting tool"

  • iPadiPhone

    delete Setting>General>VPN & Device Management>"Kyodai Rakuraku setting tool"

  • macOS

    delete System Preferences>profile>"Kyodai Rakuraku setting tool"

after deletion, please config using KUINS-Air manual

Depending on the function of printers or file servers, some of them cannot be found. In that case, please specify the IP address of the devices in order to setup.

In the case of Windows, uncheck "Use this connection credential every time you log on" in the manual, you will be asked for a password and client certificate when you connect, so change the VLAN number to switch the VLAN connection. In other cases, please delete the setting and set it again.

Check the IP address here to see if you can connect to the correct VLAN.

A repeater cannot be connected to a KUINS access point. In order to enhance the signal, you need to install additional access points. If you wish to do so, please refer to this page and apply for it.


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