Razer Synapse Not Recognizing Chroma Devices

I recently purchased a Razer BlackWidow Chroma RGB keyboard. It worked fine for a while using the Razer Synapse software to change the lighting effects and macros, but now whenever I launch Synapse with the keyboard plugged in, the software just says, "To get started, please coect a Razer Synapse enabled device". I have tried unplugging and plugging back in the keyboard, updating the software, and rebooting the (Windows 10 64 bit) system and it still doesn't work. The keyboard still works fine as a keyboard, but the Synapse software is required to use lots of its other functionality.