Who is your Isp?
I'm with Aol, and when I reinstalled Xp the same happened to me in that it would connect for no reason.
With Aol there is a dialler, which once I had found and stopped from starting up, solved my problem.
OnePlus 5T review
How to draw a mandala
iPhone X review
Les meilleures enceintes Bluetooth à moins de 150 euros