I had this effect after the update, when i start a up2date pattern update. then i can't connect for 6-10min to the webadmin and the whole www. i'm about to go to the Box and kick it just wait and try again, thats my answer... when this don't work...i don't know...
Please have a look into the aua.log (User Authenticaiton Daemon). Are there any errors at the moment you try to use LDAP? Is the process 'aua' running (Webadmin -> Reporting -> Advanced -> Process List).
If the log does not help, try to enable debuging for aua: Edit /etc/wfe/conf/aua_main_config.ini Add the line "debug = 1" AND A NEW LINE. Restart aua: /etc/rc.d/aua restart
Now the log should be more verbose.
Also you could try to make a manual ldapsearch. If debuging is enabled, you should see the ldapsearch, Astaro makes automatically at the moment you try to authenticate. This ldap search can be made manually. Just type in the command you see in the log manually: 'ldapsearch ....' Note: aua caches! So you might need to restart aua in order to get the needed logging.
