I've just had a firmware update on my C211 camera and now it won't tilt up and down, it says it's in maximum position (it's not). When initialising it moves to max position left and right but not up a

I've had the above Modem/Router for about a year and a half, tried to set it up straight away but nothing (Google Mini, tablets or phones) seemed to work very well, could be I had the wrong settings!!