[GH-ISSUE #404] Cannot run on Windows 11 in FIPS mode #855

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opened 2026-03-01 17:41:57 +03:00 by kerem · 1 comment

kerem commented

2026-03-01 17:41:57 +03:00

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Originally created by @icsy7867 on GitHub (Sep 14, 2023).
Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/404

I get an error when trying to connect due to FIPS. I tried selecting specific TLS and SSL ciphers in the options but same result.

When I google the error, I see a summary that says:

FIPS Feature ### #### If you need FIPS compliance - make this the first thing you configure #### before you do any additional configuration or package ...

But that information isnt there. Any ideas?

Originally created by @icsy7867 on GitHub (Sep 14, 2023). Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/404 I get an error when trying to connect due to FIPS. I tried selecting specific TLS and SSL ciphers in the options but same result. When I google the error, I see a summary that says: `FIPS Feature ### #### If you need FIPS compliance - make this the first thing you configure #### before you do any additional configuration or package ...` <img width="590" alt="image" src="https://github.com/aluxnimm/outlookcaldavsynchronizer/assets/3788162/bf50ba1b-ab54-4030-a7fd-4c635a93e05b"> But that information isnt there. Any ideas?

kerem commented

2026-03-01 17:41:58 +03:00

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@Nick2253 commented on GitHub (May 30, 2024):

What your search results are referring to isn't a CalDav Synchronizer issue, it's a chocolatey issue. Chocolatey must be configured to use FIPS-compliant checksum algorithms, and does not use them by default. Hence the "make this the first thing you config before you do any additional configuration or package [installations]". https://docs.chocolatey.org/en-us/configuration#security https://docs.chocolatey.org/en-us/licensed-extension/setup#set-up-licensed-edition-with-puppet

It would probably be more helpful if you shared the error here, rather than your search results.

@Nick2253 commented on GitHub (May 30, 2024): What your search results are referring to isn't a CalDav Synchronizer issue, it's a chocolatey issue. Chocolatey must be configured to use FIPS-compliant checksum algorithms, and does not use them by default. Hence the "make this the first thing you config before you do any additional configuration or package [installations]". https://docs.chocolatey.org/en-us/configuration#security https://docs.chocolatey.org/en-us/licensed-extension/setup#set-up-licensed-edition-with-puppet It would probably be more helpful if you shared the error here, rather than your search results.