. Lets assume that all entered data is correct, but you receive a ‚Unable to bind to AD’ error. You tried pinging the AD server and it responded. What is the next basic thing to check?

• Check time server on client is within 5 minutes of correct time
• Change the computer name or add a character to the end, then bind
• Go to System Preferences, Login Options. Make sure Allow Network users to log in window is checked off. Click "Options" and see if All Network users helps

Delete the computer object in AD or rename the computer and try using a IP address for a DC instead of the FQDN. If the IP trick works then make sure DNS is setup correctly in your environment. Confirm you have a DNS PTR setup for all DC's in the environment.

Verify the AD account you're using to bind has privileges to create objects in the OU you've specified in your binding. By default, it's something like: CN=Computers,DC=domain,DC=com, but that's different for every organization.

Be sure to test manually binding using the Directory Utility app in /System/Library/CoreServices/Applications. If you can bind with this app, the same information should work with Jamf Pro.

If it is a previously bound machine check the AD object is not disabled or moved to a stale container.

check the DNS for lookup and reverse lookup.