After you are login, click on the plus sign on the top and scan the P2P Code that is located under Network > P2P on the recorder. 

After scanning, you can enter the the desired name of the location for the recorder and click on the save button on top of the screen. 

Give it a few, and your NVR is online. 

if the NVR does not come online. check the it is plug in to internet and if the problem persist , feel free to contact us and will be glad to help