Kerberos ticket expired after restart

Hi@all,

i have connected a linux mint 20 with the ADS join script to UCS.

when the computer is rebooted the Kerberos ticket is displayed as “expired” (01.01.70)

g.kopf@pc002:~$ klist
Ticketzwischenspeicher: FILE:/tmp/krb5cc_1049601150_0Hj1Gz
Standard-Principal: g.kopf@GEHR.LOCAL

Valid starting       Expires              Service principal
01.01.1970 01:00:00  01.01.1970 01:00:00  krbtgt/GEHR.LOCAL@GEHR.LOCAL

I renew the ticket (as user g.kopf) on the desktop.

g.kopf@pc002:~$ klist
Ticketzwischenspeicher: FILE:/tmp/krb5cc_1049601150_0Hj1Gz
Standard-Principal: g.kopf@GEHR.LOCAL

Valid starting       Expires              Service principal
14.10.2020 14:34:41  15.10.2020 00:34:41  krbtgt/GEHR.LOCAL@GEHR.LOCAL
	erneuern bis 15.10.2020 14:34:36

now when I restart the client it is like before.

g.kopf@pc002:~$ klist
Ticketzwischenspeicher: FILE:/tmp/krb5cc_1049601150_vax35e
Standard-Principal: g.kopf@GEHR.LOCAL

Valid starting       Expires              Service principal
01.01.1970 01:00:00  01.01.1970 01:00:00  krbtgt/GEHR.LOCAL@GEHR.LOCAL

Does anyone have an idea what the problem is?

The ticket should automatically renew itself, right?

with best
sven

on another client it looks different:

s.gehr@pc001:~/UCS_domain_join$ klist
Ticketzwischenspeicher: FILE:/tmp/krb5cc_1049601120_STpXDQ
Standard-Principal: s.gehr@GEHR.LOCAL

Valid starting       Expires              Service principal
14.10.2020 09:19:59  14.10.2020 19:19:59  krbtgt/GEHR.LOCAL@GEHR.LOCAL
	erneuern bis 15.10.2020 09:19:59
14.10.2020 12:23:33  14.10.2020 19:19:59  host/srv01.gehr.local@
	erneuern bis 15.10.2020 09:19:59
14.10.2020 12:23:33  14.10.2020 19:19:59  host/srv01.gehr.local@GEHR.LOCAL
	erneuern bis 15.10.2020 09:19:59