operating system directive CryptAcquireContext failedoperating system directive CryptAcquireContext failed

[Ben Pottiez]

Hello all,

I noticed in the firebird log of one of our customers the following entries quite often:

XX-ALU Mon Jun 23 08:28:58 2025

Authentication error
operating system directive CryptAcquireContext failed
Provider type not defined.


XX-ALU Mon Jun 23 08:28:58 2025
Operating system call CryptAcquireContext failed. Error code -2146893801

We noticed that after weekends they need to restart our services because they became unresponsive. Same software running at other customers don't have this issue. I guess the services lost connection to the database. Examining the logs doesn't show anything except these above logs.

Firebird 3.11 (super) running on Windows server 2019 datacenter (VM)

Looking forward to any information that can help.

Ben Pottiez

TECHWIN Software

[Dimitry Sibiryakov]

Ben Pottiez wrote 30.06.2025 14:58:
> Looking forward to any information that can help.

Perhaps one of these answers is applicable for this case:
https://stackoverflow.com/questions/58926809/error-provider-type-not-defined-when-tried-to-generated-csr-in-mmc-console

--
WBR, SD.