hendra left a reply on Can't Connect To Homestead (ping 192.168.10.10 Fails)
Sorry for necro-ing an old thread, but I also often ran into this issue, and as suggested by one of the reply, rebooting the machine fixes the issue.
Though I'm not sure what is the exact root cause, in my case it happens often enough that rebooting the machine isn't really an option (it seems to happen when I connect to some of my VPN).
So if anyone is also running into similar issue, rebooting the vbox network interface seems to also achieve the same thing without rebooting.
sudo ifconfig vboxnet0 down && sudo ifconfig vboxnet up on macos. You can see the interface the vm is using on the Virtualbox app.