Question 05 4R Door Locks

[Bigguys4runner]

Hello,
The Front Driver door lock stopped actuating when using the Remote. The same door stopped locking when I used the Door Lock button inside the door. But all the other doors locked.
About a month later now and both front doors will not lock using the remote or the door lock button. But the two back doors and rear hatch will lock using the remote and the button inside the driver door.
This is very strange to me. Why it did the two front doors.
I would appreciate any advice you may offer?

2005 Sport Ed 4Runner, V8, 2WD.

Thanks in advance.

[OntheRox]

bad switches in doors or contacts? You probably use the fronts mnually more than the rears?