It is wrong to assume that an Inactive contact is a problem to be solved. It is not. Inactive contacts are normal and nothing should be done to "fix" them. Yes, you can cause them to go away by changing Auto Asymmetric to Symmetric, but that is unhelpful and you have no reason for doing so other than your wrong idea that an Inactive contact is a problem to be fixed.
You are navigating away from the AIS Discovery experience