The Pi itself is not having connection issues. It is being recognized and read. The Arduino Uno that is using the Pi for Cayenne access is the one having trouble communicating via serial-USB port. I took it home this weekend to trouble shoot and found that when on my home wifi network there is no issue. Can you recommend what I should look into?
On a side note, after about 20 minutes of good, fluid readings while connected at home, the widgets for my Arduino froze. It was still being recognized by Cayenne, but was no longer updating the values assigned to the sensors.