How to use rosserial_windows to connect to BeagleBone Blue running ROS?

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I am currently trying to use rosserial_windows to send messages to a BeagleBone Blue running ROS Melodic on Ubuntu 18.04 from a Windows 7 PC without ROS (the two are connected by USB). I was able to compile and run the following tutorial code on my PC (https://github.com/ros-drivers/rosser...), and then ran the command rosrun rosserial_server socket_node on my BeagleBone, but when trying to echo the topic it didn't show up.

Any help would be appreciated, thank you!