Further troubleshooting.
If I run: kinit -k -t /etc/dirsrv/ds.keytab ldap/ipa-unhealthly.ipa.server before the re-initialise it complete successfully and a klist shows Default principal: ldap/unhealthly.ipa.server
After the LDAP error shows and the re-initialise is cancelled I see kinit: Generic error (see e-text) while getting initial credentials.
In the healthy server if I look at /var/log/krb5kdc.log I see when the re-initialise in progress: TGS_REQ (6 etypes {aes256-cts-hmac-sha1-96(18), aes256-cts-hmac-sha384-192(20), camellia256-cts-cmac(26), aes128-cts-hmac-sha1-96(17), aes128-cts-hmac-sha256-128(19), camellia128-cts-cmac(25)}) 10.100.104.7: ISSUE: authtime 1714662555, etypes {rep=aes256-cts-hmac-sha1-96(18), tkt=aes256-cts-hmac-sha1-96(18), ses=aes256-cts-hmac-sha1-96(18)}, ldap/healthy.ipa.server for ldap/unhealthy.ipa.server
Thanks,