Gripper disconnected from ttyUSB0 automatically

pragathip

I am commanding a 2-F Robotiq gripper on a UR5 from my computer (Ubuntu 16.04 - ROS Kinetic). The gripper is connected to my computer via USB at ttyUSB0. At startup, the robotiq driver (https://github.com/StanleyInnovation/robotiq_85_gripper) establishes connection. But after a minute or so, the output of dmesg is 

"FTDI USB Serial Device converter now disconnected from ttyUSB0"

Any leads as to what might be causing the issue?

bcastets

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