Once you configure your LDAP server and if users are unable to see domain name in the drop down to login, you will have to go through the steps mentioned as below to fix the issue.
Steps to add domains to appear on the list in drop down while logging in as user:Â
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If you are unable to see the domain dropdown list on the Login page make sure there is a check on the box under
Global configurations which reads " Show a List of Domains to end users for authentication" as shown belowÂ

NOTE: If the navigation or the screenshot looks different from the one mentioned above , you may be in an older firmware version and would require a firmware upgrade. Please refer the link below to upgrade the firmware to latest version.
https://www.sonicwall.com/en-us/support/knowledge-base/170504270079039
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