Are you saying you cannot see the Beaglebone drive letter appear on the Windows PC, and that ipconfig /all does not show the network interface?
If that is occurring with two different images, but it appears to boot up fine via serial, then it sounds like a USB cable or connector issue. Some cheap cables are only intended for charging, and may not have all four wires internally connected. If another
USB cable doesn't work, you may wish to test with another PocketBeagle to eliminate some hardware issue.