Troubleshooting topology and configuration of the components

If you experience problems accessing the installed components, verify their topology and configuration.

Troubleshooting options

Problem	Troubleshooting
The components don't appear on the Products tab.	Wake up the agent on the TIE server. In Trellix ePO - On-prem, select Menu → System Tree, then select the checkbox for the TIE server. Click Wake Up Agents. On the Wake Up Trellix Agent page, select Force complete policy and task update, then click OK. This option sends the server properties from the TIE server appliance to Trellix ePO - On-prem. Select Menu → Automation → Server Task Log to verify that the task completed. In the System Tree, click the server name, click the Products tab, then verify that these components are listed: Trellix DXL Broker, Trellix DXL Client, and Trellix Threat Intelligence Exchange Server .
The tags aren't applied correctly on the deployed components.	Run the server task to check which tag is missing and apply the tag again. Select Menu → Automation → Server Tasks, then run Apply TIESERVER tags to TIE Server. Select Menu → Automation → Server Task Log to verify that the task is complete. In the System Tree, verify that the TIESERVER tag was applied to the system.
The Trellix DXL topology settings and the Trellix DXL fabric configuration aren´t correct. The Trellix DXL broker isn't running because it is disconnected.	Check the connection status of the Trellix DXL broker. In the System Tree, select the TIE server, then from the Actions menu, select DXL → Lookup in DXL. Verify that the connection state is Connected. Verify that the Trellix DXL broker is running. Select Menu → Systems → TIE Reputations to verify that you can search for files and certificates. It might take some time for reputation information to populate the database
The topology of your TIE server instances isn't correct or doesn't show the configuration you set.	Select Menu → Configuration → Server Settings → TIE Server Topology Management. Click Edit. Modify the operation mode, then click Save. Verify that the operation mode of your TIE server instances have changed based on your edit.
Trellix DXL and TIE services aren't running.	Open a console window, log on, and type these commands in order: `systemctl status cma` `systemctl status dxlbroker` `systemctl status tieserver-policy-listener` `systemctl status tieserver`
Error message in TIE/DXL logs: Exception: Contains non-LDH ASCII characters	Underscore is not an allowable character in the hostname. You can fix the error by changing the hostname: change-hostname.