I've seen this, but can't recall the solution. Try the following:
Log out of ePO and log in again.
Use a different browser (I think this may be a Chrome-specific issue).
Install pending ATD updates.
Install pending ePO updates/hotfixes.
Thanks tkinkead reply,
After I check in all update, same issue still exist (update EPO to latest hotfix, ATD 3.8)
And I have try IE, chrome, firefox for this
BTW, I export the policy and change the config by XML file
Server seem added to the server list
ATD service seem normal
On the other hand, I have connect two ATD to the EPO and both Tag as a workstation, Is that normal?
The tagging bit just depends on how your tagging is set up. It likely shouldn't case a problem.
Manually editing the XML config should work just fine. Have you made sure your ATD extension is on the latest version?