Adobe in IAD05 has a dedicated Active Directory installation and subsequent way to render UNIX logins. In order to login into the system, please make sure your login is in the following format:
login as: ACROBAT+username
password: (your password)
Do note the username is a specific user account assigned by the SE on the Adobe account. Now if the login hangs for a long time but eventually logs you in, this may be because the SMB or winbind service may be eating a lot of CPU cycles. To fix this, you typically need to login as a local user preferably root, kill and then restart the services. You can issue the following commands if you are unsure of what to do:
Stop the services:
service smb stop
service winbind stop
Start the services:
service smb start
service winbind stop
Check status of the services:
service smb status
service winbind status
Alternatively, you may need to kill the process ID to get the service to come down. You can issue the appropriate command(s) to grep for the service or process ID returned by using the ps command and killing the process with a -9.