Before you get too deep into troubleshooting techniques, it is a good practice to consider the following questions:
- Were there physical changes to your network that occurred recently?
- If another device is placed in the Sensor's position, does that device receive traffic?
- If the Sensor is in L2 mode, are your network's services still affected?
- Are you using approved Trellix GBICs or SFPs or XFPs with your Sensor? (For a list of approved hardware, see Trellix KnowledgeBase article KB56364.