Turn on/off DHCP to re-route traffic via your router, instead of your Pi-Hole

PiControls.psm1

function PiOn() {
    $conn = Get-NetAdapter -physical | Where-Object Status -eq "Up"
    Set-DnsClientServerAddress -InterfaceIndex $conn.InterfaceIndex -ResetServerAddresses
}

function PiOff() {
    $conn = Get-NetAdapter -physical | Where-Object Status -eq "Up"
    $gateway = Get-NetIpConfiguration | Foreach IPv4DefaultGateway | Select-Object NextHop
	# This assumes the current gateway is your home router & your router still issues DHCP (instead of Pi-Hole).
	# If it's not, then uncomment the following line and specify your router's IP address.
	# ipAddress = 192.168.1.1
	$ipAddress = $gateway.NextHop
    Set-DnsClientServerAddress -InterfaceIndex $conn.InterfaceIndex -ServerAddresses ( $ipAddress )
}

Export-ModuleMember -Function PiOn, PiOff