Can not install vCenter 5.5 - Error while installing Inventory Service (Host name may not be null)

Hello,

i tried to install a new vCenter Server 5.5.

First, I installed SSO without any error. After that, i tried in install Inventory Service with the error "SSO registration failed".

Can anybody help me?

Thanks!

psmb

vm_ssoreg.log:

[2014-01-13 07:12:01,900 main  DEBUG com.vmware.vim.install.cli.RegTool] $Id: //depot/vicore/vicore-2013-rel/regtool/viregtool/src/main/java/com/vmware/vim/install/cli/RegTool.java#4 $

[2014-01-13 07:12:01,904 main  DEBUG com.vmware.vim.install.cli.RegTool] Executing command: checkVersion -d https://vm_ts_vcenter.domain.com:7444/lookupservice/sdk --version-number 0 -c C:\Users\ADMINI~1\AppData\Local\Temp\1\{28D9C95C-F311-4368-A2FF-FFDF4D5BC8E4}\certs --insecure

[2014-01-13 07:12:01,953 main  INFO  com.vmware.vim.install.impl.RegistrationProviderImpl] Intializing registration provider...

[2014-01-13 07:12:02,707 main  DEBUG com.vmware.vim.install.impl.LookupServiceAccess] Creating VMODL client for LookupService

[2014-01-13 07:12:02,716 main  INFO  com.vmware.vim.install.impl.CertificateGetter] Getting SSL certificates for https://vm_ts_vcenter.domain.com:7444/lookupservice/sdk

[2014-01-13 07:12:03,140 main  DEBUG com.vmware.vim.install.impl.CertificateGetter] Establishing socket connection to vm_ts_vcenter.domain.com/172.16.37.72:7444. Timeout is 60000

[2014-01-13 07:12:03,587 main  ERROR com.vmware.vim.install.cli.commands.CommandArgumentsParser] Host name may not be null

[2014-01-13 07:12:03,588 main  INFO  com.vmware.vim.install.cli.RegTool] Return code is: InvalidInput