Issue with wlan0 and wlan1 RPi3 model B

[alisson]

Hello.

I have a problem that I can not solve and it's complicated for me.
I have one Raspberry Pi 3 and use the internal wifi to connect on network 1 and a usb dongle ralink to connect on network 2.

So. To do it, I configure two supplicant files..
See my network interface:

Code: Select all

allow-hotplug wlan0
iface wlan0 inet manual
  wpa-roam /etc/wpa_supplicant/wlan0.conf
wireless-power off

allow-hotplug wlan1
iface wlan1 inet manual
  wpa-roam /etc/wpa_supplicant/wlan1.conf
wireless-power off

The problem is:
Every boot the raspberry put the internal wifi in wlan0 and dongle in wlan1.. It is that I want!!! many times work fine.
But sometimes, the rasp put the dongle in wlan0 and internal wifi in wlan1 and devices swapping the connection networks =(

How could I say to raspberry that the internal wifi should always be wlan0? without any rule for other devices.