Ignore Non Responders

Nodes which don't respond to a particular type of probe (ie, LaserWriters when using Echo packets; Macs when using Printer Status packets) slow the test process down, because MacPing must wait for the full timeout period for each device. 

Choosing Ignore non-responders ignores devices which haven't responded five (5) times in a row.  Choosing it again selects all devices again.

Devices which are currently being ignored have a "◊" appended to the name and have no trace on the screen.