Hard reset the camera by pressing the reset button for 12 or 13 seconds
Then add the camera by writing the code not by scanning the code, don't
scan the code just write the code yourself
If it works fine on your work WiFi and your camera is still in the house
that means that your home WiFi is not blocking anything All of that
happened to me and it was sometimes it works on the mobile data and
sometimes it doesn't at all Untill I mana...