Configure a ControlNet Module 
 
  Rockwell Automation Publication CNET-UM001F-EN-P - February 2018  55 
 
9.  Click the Media Configuration tab, modify the settings if needed, and 
click OK. 
Generally, you can use the default media configuration. Adjust the 
configuration if your network is longer or uses repeaters. 
If the media configuration does not accurately represent the 
maximum propagation delay between any two nodes, your network 
may experience errors. 
 
10. From the File menu, choose Save.