Kinit: Connection refused while getting default ccache

Hi,

When trying to get a Fedora kerberos ticket, kinit fails with this error:

$ fkinit -u USERNAME
FAS password: ******************        
FAS OTP (leave blank if not configured): ********
kinit: Connection refused while getting default ccache

This is from a F41 distrobox shell.

Runing kinit directly in the host (F40) also fails.

Any idea?

Added kerberos