I've recently changed my broadband router and since then I cannot access my CCTV NVR. The NVR output is connected to the TL-PA717 which used to be linked to my router. How do I change my access passwo

I have just bought a C200 camera. I also bought a micro SD card for storing images. When I insert the card I get a message that the card is not formatted Will someone please explain what I should do a