Unable to verify Authenticode signatures due to error code 1627

Hi all,

our SQL Server (which has been running just fine the past couple of years) suffered from a faulty (ECC) memory module last week, which is in the process of being replaced (currently the SQL Server runs on 96GB instead of 128GB.

The SQL Server doubles as a Power BI Gateway btw, which might or might not be relevant.

When rebooting the server (scheduled server reboot during the weekends), SQL Errorlog comes up with this error below, which I've never encountered before:

"Unable to verify Authenticode signatures due to error code 1627. Signature verification of SQL Server DLLs will be skipped. Genuine copies of SQL Server are signed. Failure to verify the Authenticode signature might indicate that this is not an authentic release of SQL Server. Install a genuine copy of SQL Server or contact customer support."

I've tried to search for related problems and answers, however, so far I came up with nothing. I've read somewhere that Error code 1627 seems to suggest a system error, advising to reinstall the OS, but I'm not really convinced this is the same issue. Due to there having been a faulty memory module, I'm not entirely willing to write off the possibility, however, I do find this unlikely since the module was an ECC module.

Does anyone know what causes this error or how to go about pinpointing the root cause?

Any thoughts are appreciated.

Cheers,

Niels