I have a Asus RT-AC68U on Merlin firmware. I have the router connected to all my devices in my house when I have the IP Vanish connected to all my devices working after a couple of days, I key the keysize 256. I use the asus router app to turn on or off the VPN. I remove it from custom configuration, but it keeps coming back. Is this normal? What can I do to stop the keysize 256 from coming back? Any step-by-step suggestions appreciated. Thank you.