Changed WiFi router or given a new router by your ISP?
If for some reason you have changed/updated your WiFi router your camera(s) will need to be reset to factory defaults and setup again, since the WiFi details and ip addressing on your camera(s) will still be that of your old router.
To reset your camera(s) and start afresh please click here.
NB: Be sure to read and follow the reset instructions carefully to avoid any problems or delay in setup.
Once reset you will need to setup the WiFi connection again. Please follow one of the guides below to complete this.
WPS Method, for WPS enabled routers.