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• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

When running the Nextcloud client app on Windows 11 for the first time and connecting to a Nextcloud server with a certificate signed by a root CA that is not present in the Windows certificate store (certmgr.msc), the Nextcloud client displays a warning that the certificate cannot be verified because the root CA certificate is missing.

After this message, the root CA certificate appears in the Windows certificate store, but it is necessary to restart the Nextcloud client to get rid of the warning.

Steps to reproduce

1. Install Nextcloud Client on Windows 11
2. Make sure your server certificates root CA certificate is not in the windows certificate store.
3. Start Nextcloud Client
4. Click "Login"
5. Type in the address of your server
6. Click on "Next"
7. The certificate warning should appear

Expected behavior

There should be no certificate warning.

Which files are affected by this bug

none

Operating system

Windows

Which version of the operating system you are running.

Windows 11

Package

Official Windows MSI

Nextcloud Server version

30.0.14

Nextcloud Desktop Client version

3.17.1

Is this bug present after an update or on a fresh install?

Fresh desktop client install

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

Additional info

No response