Hi, I just upgraded from Xiami to Tapo doorbell and hole cameras since all my wifi network is based on TP already. The cameras work well and you can access the video feed within 2-3 seconds from connecting to camera. The doorbell though takes about 25-30 second each time to connect (show the actual live video feed, be it through connecting via the app or when taking a "call" once the doorbell has been pressed. The firmware is up to date, the network strength is green (note: two of the 3 cameras I have a significantly farther away from the router than the doorbell).