Hikvision strange problem

[pant13]

Hi

I have a problem with my hikvison DS-2CD2T42WD-8

The problem occurs only at night. Everything was working fine and now I get this funny picture.
I 've tried many different settings but can't go away.
I cannot reset the camera as I accessing it remotely.
Any ideas?

 

[alastairstevenson]

The camera is seeing through raindrops on the glass in front of the lens.