[Chris_Ely]

Using a 5 GHz router and computer should help. The 5 GHz band has more channels available to limit interference. Make sure that all pieces of the Wifi network has 5 GHz. The robot radio is already 5 GHz capable. You can use a tool like Wifi Analyser for Android or Windows 10 or Acrylic Wifi Home to help track Wifi interference. Make sure that there are no networks on overlapping channels.
I have also had success reducing interference in heavy Wifi environments making the robot network a hidden network. This prevents people's phones from trying to connect to the network. This was using the old D-Link radios, I don't know if this is needed for the new radios.