samba - Jan 2013 - problems with samba samba-3.5.10-125.el6.x86_64 on 2.6.32-279.14.1.el6.x86_64

Hi,

I am not sure if this is the right eMail-list to ask questions. I have 
the problem that with a second connect to a samba share the user is 
authenticated as guest. The first authentication was right done on my 
own user account.

What i am doing wrong ?

Thansk
Michael

[2013/01/02 11:06:34.964955,? 1] smbd/service.c:1070(make_connection_snum)
? pc-etw-051 (::ffff:172.28.96.114) connect to service vws-1 initially as user
ext.mis (uid=589, gid=1000) (pid 7466)

[2013/01/02 11:06:34.978960,? 2]
smbd/service.c:587(create_connection_server_info)
? guest user (from session setup) not permitted to access this share (vws-1)
[2013/01/02 11:06:34.979000,? 1] smbd/service.c:678(make_connection_snum)
? create_connection_server_info failed: NT_STATUS_ACCESS_DENIED