I have double-clicked the file "ca-bundle". It wanted me to install a certificate.

I wanted to install the certificate, but I was told it is too old. I also cannot see more than one certificate...



Thanks for your answer
Franz

Would expect that any file included in the installer will overwrite the old [with a few exceptions], but anyway the file is called ca-bundle, because it is... a bundle. Open it into wordpad [and make sure not to save it on exit]. Browse the file, where the second cert. says:

Certificate Ingredients:
    Data:
        Version: 3 (0x2)
        Serial Number: 913220207 (0x366ea26f)
        Signature Algorithm: sha1WithRSAEncryption
        Issuer: C=US, O=Digital Signature Trust Co., OU=DST (ANX Network) CA
        Validity
            Not Before: Dec  9 15:46:48 1998 GMT
            Not After : Dec  9 16:16:48 2018 GMT
        Subject: C=US, O=Digital Signature Trust Co., OU=DST (ANX Network) CA
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
            RSA Public Key: (1024 bit)
                Modulus (1024 bit):

If the file certificates were expired, we'd be inundated with messages on the forum, but we're not. If expired, BOINC will actually log an entry to tell you. You can simulate that by setting your computer back to for instance 1997 or forward to 2040, though not recommended as this will upset the client statistics, and the timer counters... computing will stop for the time you set the date back.

I'll try all you've suggested ... (@ home, where the "one" computer is)
Thanks so long

Best whishes
Vielen herzlichen Dank
Franz

OK, defaults restores successfully, whatever made them change.

Crunch On.