successfully registered to zone [could not determine]11.2.3a

I also created a SR but maybe this will work faster ;)
When registering a workstation (VDI linked clone windows 7 sp1 dutch) the registration succeeds with:
successfully registered to zone [could not determine].
Our zenserver is a linux appliance updated to 11.2.3a
The installed agent on the vdi is also 11.2.3a. (updated from 11.2.0)

The zenworks window stays empty and there is no option to logon.
All options below file view .. help disappeared.


This is our imaging procedure:

@echo off
echo.
echo Prepareren pc voor ZENworks client en -registratie.
echo.
echo Aub pas uitvoeren vlak voordat image gemaakt wordt.
echo.
pause

echo.
echo Registratie ongedaan maken.
echo.
"C:\Program Files\Novell\ZENworks\bin\zac.exe" unr -f -u wsreg -p vlaardingen
rem "C:\Program Files\Novell\ZENworks\bin\zac.exe" fsg -d
"C:\Program Files\Novell\ZENworks\bin\zac.exe" cc

echo.
echo Stoppen service.
echo.
net stop "Novell ZENworks Agent Service"
sc config "Novell ZENworks Agent Service" start= manual

echo.
echo De ZENworks Imaging Windows Agent wordt nu opgestart.
echo Klik op Edit, Clear Image-safe Data en sluit hierna
echo het programma. Bewaar de wijzigingen.
echo.
pause
rem "C:\Program Files\Novell\ZENworks\bin\preboot\ziswin.exe"
pause

echo.
echo Verwijderen cachemap.
echo.
rmdir "C:\Program Files\Novell\ZENworks\cache\zmd" /s /Q

echo.
echo Verwijderen apparaatinfo.
echo.
del "C:\Program Files\Novell\ZENworks\conf\device*.*" /s /q

echo.
echo Klaar. Maak nu de image/snapshot voor de nieuwe werkplek.
echo.
pause

The registration procedure is:

@echo off

set LOCALLOG=c:\windows\temp\postsync.log


echo --- %time% Start Postsync script --->%LOCALLOG%
echo.>>%LOCALLOG%


echo %time% Start Novell registratie>>%LOCALLOG%
sc config "Novell ZENworks Agent Service" start= auto
net start "Novell ZENworks Agent Service"
"C:\Program Files\Novell\ZENworks\bin\zac.exe" reg -g https://vws73.vlaardingen.nl -u wsreg -p vlaardingen
echo %time% Stop Novell registratie>>%LOCALLOG%
echo.>>%LOCALLOG%
\
zac ci gives:

C:\Users\wp2jan>zac ci

Processing Command: ci

No certificates found in the cache.

From initial-web-service file:

Certificate Details for host https://vws73.vlaardingen.nl.

Subject: CN=vws73.vlaardingen.nl, OU=ZENworks
Issued by: CN=vws73.vlaardingen.nl, OU=ZENworks, O=Internal
Certificate Authority
Serial number: 012F9C3949F9
Not valid before: 26-4-2011 15:08:10
Not valid after: 25-4-2021 15:08:10
Thumbprint: 7903E0B113ECD38BBE9C0669A2E9BF51A4CC1578