JYU WLAN/WiFi wireless networks jyu-staff, jyu-student and eduroam, certificate has been changed. GEANT OV RSA CA 4 has been replaced with

Sectigo Public Server Authentication CA DV R36

Domain remains the same: radwl.cc.jyu.fi

Most wireless devices have the new certificate by default, so connecting, the question about CA certificate can be answered with "Use system certificate", "Use device certificate" or similar answer.

If you are unable to access wireless network, please make your device Forget current wireless network profile and connect again.

When connecting, use these choises. Depending on the device used, all options may not be asked.

EAP-method: PEAP
2. phase method: MSCHAPv2
username: JYU username (for eduroam: JYU username@jyu.fi)
password: JYU password
CA-certificate: Use system/device/... certificate
Online Certificate Status: Request Status
domain: radwl.cc.jyu.fi

If your device does not have the certificate needed, you can either answer "Do not use" certificate, or install the certificate file  Sectigo Public Server Authentication CA DV R36 into your device.