How to fix Realtime Light bleed and on/off issues?

Guys,

lights in Unity seem not alwas to work as I would expect. And I think its annoying. Hope you guys have some tips and workarounds. I am using realtime mode and I do not want to change it.

Here are some samples which bug me:


This lamp has 4 lights. 3 up and 1 down. The rightmoste up light does nothing.
If I disable the top light (shining down) things change like this:

Anybody know, why that is and how I avoid it?

If I walk away from the lamp it changes like this:
grafik
All upwarts direct lights go off. Only the downwards one continues to shine. Anybody know, why that is and how I avoid it?

Here is a lamp behind a wall:


Light is bleeding through the wall. Anybody know, why that is and how I avoid it?
If I configure this light to point lights it actually stops the bleed. Wonder why that is.

All lights are configures like this:

Anybody any tipps how I get those lights to behave how they are supposed to?

Thanks.