Why your night vision comes back white

People describe this as the camera failing at night, but a blown-out white image is the opposite of a failure. The sensor is working and something very close to it is far too bright. There are four things it is likely to be, and three of them cost nothing to rule out.

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A bright light mounted close to a doorbell position, blowing out the wall beside it
A white picture at night is not a failing sensor. It is something bright far too close to the lens.

Something reflective is directly in front of the lens

White trim, a light-colored doorframe, a storm door, a glass panel, or a wall the camera is mounted flush against. Anything pale and close throws infrared straight back. If the image is uniformly white instead of white in one patch, this is almost certainly it. Angling the camera a few degrees away from the surface fixes it more often than any setting does.

A spider has built across the lens

Infrared attracts insects and spiders follow them, so a web strung across the housing is one of the most common causes there is. The web sits closer to the LEDs than anything else in the scene and lights up like a sheet. Look at the camera itself before you look at the app.

The porch light is in the frame or behind the camera

A bright light pointing back toward the lens, or sitting inside the frame, gives the sensor something to meter for and everything else falls away. A light mounted directly above the camera is the usual version of this. Aim it at the ground people walk on instead.

The lens cover is hazed, filmed or scratched

Infrared scatters off imperfections that daylight passes through, so a cover that looks merely grubby in the afternoon can be unusable at night. Clean it gently with a soft damp cloth and nothing abrasive.

The lighting causes this, and a new camera will do the same thing

It is worth being blunt about this, because the usual response is to replace the camera and get an identical result from the new one. The sensor is doing what it was designed to do. What changed is what is in front of it.

Usually not, and often the reverse. Brightness is rarely the shortage. Placement is. A brighter light in the wrong position gives the sensor a stronger thing to meter for and leaves faces darker still.
A live view and a recorded clip can use different exposure handling on the same model, and a preview you open deliberately is often brighter than a clip triggered in the middle of the night. Judge it on the recordings, since those are the ones you will need.
It is different, and not always better. Color modes need real ambient light to work with and fall back to something worse than plain infrared without it. If your porch has a steady light, color is worth trying; if it is dark, it is not.
That points at a single reflective object rather than a general problem, commonly a doorframe, a downpipe, or the edge of the housing itself if the camera sits deep in a recess. Move or angle the camera slightly.

What the fixes need

Wedge tilting a doorbell downward toward the step
Wedge and angle

Ring Wedge Kit

Three stackable wedges that tilt the camera down by 5, 10 or 15 degrees. That is the fix when faces are cut off at the top and the step is out of shot. The tilt is modest next to the sideways mounts, and that is the point. A few degrees is usually all a doorbell hung at the old button's height needs. Ring's own part, and it fits the Video Doorbell (2nd Generation) and Battery Doorbell only.

Warm-white bulb lit at dusk in an outdoor porch lantern
Lighting

Gonhom 2700K dusk-to-dawn outdoor bulb

A warm-white outdoor bulb that switches itself on at dusk, which covers two of the three things a porch light needs to get right for a camera. Warm light draws far fewer insects to the lens than cool white, and insects at the lens are a common cause of overnight false alerts. Dusk-to-dawn gives the camera one steady exposure to settle at instead of a light that jumps on and off all night. Sold in twos, 720 lumens each on a standard E26 screw, which is bright enough for a porch without blowing out the near field. Where it points is still down to you.