For your HubbleClub camera to function properly, you need an upload speed of at least 1mbps per camera. You can test your internet speed on this site: http://www.speedtest.net
Please note that the upload speed is very important for the camera to upload the video frames. Usually, customers only focus on the download speed of their internet. In normal home premises, the customer connects many devices to the internet and thus, the upload and download bandwidth gets distributed across all devices evenly. If the upload and download speed is in 100’s of Mbps, then connectivity issues due to upload/download bandwidth can be easily ruled out.