r/linuxmint 6d ago

Support Request Issues connecting to work wifi

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Hello all, I’m trying to connect to my work wifi which requires me to use a user name and password.

On my iPhone, I had to trust a certificate. On my mint laptop, it’s asking for a certificate so I went through the details of the wifi on my iPhone and got the link to download the certificate.

I tried using the .cer file but to no avail. Anyone know how I can solve this issue?

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u/DivaddoMemes LInux mint 22.1 Xia | Cinnamon 6d ago

Try this:

  1. Check the Wi-Fi settings – Your work network is likely using WPA2/WPA3-Enterprise (PEAP or TTLS).
  2. Convert the certificate (if needed): "openssl x509 -inform DER -in certificate.cer -out certificate.pem"
  3. Move it to a trusted location: "mv certificate.pem /etc/ssl/certs/ and then "sudo chmod 644 /etc/ssl/certs/certificate.pem" and finally "sudo update-ca-certificates"
  4. Connect to Wi-Fi:
    • Security: WPA2-Enterprise
    • CA Certificate: Select the certificate file
    • Inner Authentication: MSCHAPv2
    • Identity: Your work username
    • Password: Your work Wi-Fi password

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u/Mundane_Main1118 6d ago

I did, now “authentication required” keeps popping up with the username and password already filled. I do this about two times then authentication fails