I realise this is an old thread but it shows up in web searches so thought I’d update here. I had the same problem as previous posters, using ucam247 cameras that require flash player. I had given up accessing the cameras via PC and used the ucam247 app on iPad, but that has recently disappeared from the App Store.
I tried accessing the camera from PC using a browser and the Live Feed doesn’t show (requires flash) but I could still accessing settings. Also, when clicking on saved files and alerts, it downloads a .mov file so I can view files that way.
I then tried accessing the camera from an iPad using both safari and chrome, and surprisingly everything works, even the Live View. Not sure how the iPad is doing that without flash player but it does work.