If third-party applications aren't working correctly after installing Trellix Endpoint Security (ENS) Firewall 26.x, and you didn't preconfigure custom Firewall rules, you can enable Adaptive mode to determine whether Firewall is blocking those applications.
Enabling Adaptive mode allows Firewall to create client rules automatically, so that necessary applications and websites are not blocked while preserving minimum protection against vulnerabilities.
Adaptive mode analyzes events, then if the activity is considered regular and needed for business, Firewall creates client rules.
By enabling Adaptive mode, you can gather the information you need for tuning your protection settings. You can then convert client rules to server-mandated policies. When tuning is complete, turn off Adaptive mode.
Best practice: To be fully protected by Firewall, turn off Adaptive mode after updating your policies.
You can enable Adaptive mode in these ways:
From ePO - On-prem — In the Firewall Options settings, then apply this policy to the client.
From Trellix Endpoint Security (ENS) Client — In the Firewall Options settings, do one of these:
Click Firewall on the main Trellix ENS status page, then click Advanced and select Adaptive mode.
From the Action menu, select Settings, then click Firewall on the Settings page, then click Advanced and select Adaptive mode.