During one of my deployment at a customer site, bumped across this bug around the latest build of NetScaler. Build Version: 11.0 64.34.nc
Under Authentication > Dashboard, the Status will show the error instead of Up/green (assuming that the Firewall rules are in-place/OK):
The issue is seen when you try to add the authentication server/profile, in this case it is LDAP, in the add auth page – when you enter the LDAP bind credentials (with special characters) and perform ‘retrieve attributes’ task, the page refreshes shows up as down invalid admin bind credentials.
Use an account with no special characters (I understand this may not be ideal from a security perspective therefore I tried adding the authentication server from CLI and the outcome still is same. Hopefully this should be addressed in the next release of netscaler build)
Reference forum discussion http://discussions.citrix.com/topic/373583-down-%E2%80%93-invalid-admin-bind-credentials/