Restart the PF service: service pf restart or rcctl restart pf . 4. Restore from Backup (pfSense/OPNsense)
If you are on a development system, you may need to recompile pfctl against your current kernel headers: pf configuration incompatible with pf program version
In some cases, third-party software (like security plugins or monitoring tools) may have replaced system files with incompatible versions. Troubleshooting and Fixes 1. Perform a Configuration "Dry Run" Restart the PF service: service pf restart or