No. The GTecLink app is used only to connect with the nodes to commission them or to download data from them. The initial commissioning of the Gateway requires that a PC be connected to the Gateway via the USB port on the Gateway. You will need a standard CAT 5 or CAT 6 ethernet cable and will connect one end to your PC and the other to the Ethernet to USB adapter that was included in the Gateway package. If your PC does not have an ethernet port, you will need to order an additional Ethernet to USB adapter (DGSI p/n 58820530) and will have an adapter on both ends of the ethernet cable. Once you are connected to the Gateway and it is powered on, you will open an internet browser and type http://169.254.0.1 in the address bar. The user name will be admin and the password will be VMjG6z. This address, user name and password will be the same for any wired connection to any Gateway. Please note that this is NOT the address, user name or password to access the Gateway remotely. That information is provided on the Gateway Information sheet that was included with your Gateway and is unique to each Gateway.