NVIDIA X Server Setting On linux

The last time I used this program, I took a long time to load ( a few minutes). It used to start immediately.
Today, I wanted to check for the reason for this behaviour.
When I select the Icon, I noticed that my modem light was flashing ( something is setting up a link from this program).
I disabled my network connection and selected again the program : it started immediately.
I looked at the program setting: nothing shows that I can enabled (disabled) network connection.

What is going on ?