I had got my brand-new BBB from Amazon this Monday. I had updated Debian10 OS. When I tried setting up wifi, but it could not connect to it. So, I again flashed Debian in eMMC. I followed all the steps but now it is not connecting to its IP address.
Which specific image did you flash with?
Grab the latest from: https://forum.beagleboard.org/tag/latest-images
Regards,