My apologies for the delayed response
I power my MR3020 with my computer's USB 3.0 ports I only plug in one of the two male USB plugs on the cable included with the router. I do not power it over serial.
I connect Ground, RX, and TX. Additionally I have a 10k resistor across Vcc and Ground
I attempted again with both USBs plugged into my computer and then again with only one plugged into the included wall adapter. Neither set up seemed to make any difference at all, all setups resulted in the same outcome.
I power my MR3020 with my computer's USB 3.0 ports I only plug in one of the two male USB plugs on the cable included with the router. I do not power it over serial.
I connect Ground, RX, and TX. Additionally I have a 10k resistor across Vcc and Ground
I attempted again with both USBs plugged into my computer and then again with only one plugged into the included wall adapter. Neither set up seemed to make any difference at all, all setups resulted in the same outcome.