Traffic Settings ?? No Planes at Gates, No ATC except to me.

Good Morn. all,

Seems I have done something ?? regarding settings in FSX. I used to have planes at the gates when I landed, and could set for heavy or light ATC traffic.

I do have ATC to my plane and Gate instructions upon landing.

I have changed my settings many times over last couple of years, but recently am experiencing the above description, only me in the air, and on the ground, (except for ground traffic, as many as I choose -heavy or just a few-with settings).

I have reset to "default" several times, all that changes is less quality with mesh and terrain. Would sure appreciate any opinion on what I may have done to myself !!

Thanks Gary Q.