I have a new Hikvision NVR running 11 Hikvision cameras. Disk is WD purple 6tb, system has been up and running okay for about 30 days thought it was stable after all the tweaks and updates but yesterday noticed it had stopped recording all cameras (all set to motion detect). Was able to resolve after rebooting the NVR but after about 18 hours it just stopped recording. Live view working okay, just decides to stop listening to motion alerts from the cameras. Reboot resolves this but system is useless if it just randomly stops recording. Logs tell me nothing, HDD self test succeeds.