Man-in-the-middle detection

[ericB60]

Good morning,
My Android devices tell me they detected a man-in-the-middle when I do a network scan and my VPN kicks in.
I tested under Windows 11 and I have a message saying that ports are open and can allow individuals to enter my network.
The vulnerability identifier is: HNS-WAN-ACCESS and the open ports: 22589, 50997, 51000, and 63388.
Avast asks me to close them.
After analysis, it seems that my router (Livebox 5 from Orange) is the problem because it accesses the Internet; but that's his job, isn't it?
What can I do to fix this issue that seems to have occurred after an Avast One update?
FYI, my brother who has a Livebox 2 has the same problem with Avast VPN Security...
Thanks for reading me.
Eric

[DaveP]

See my post in the Avast One for Android child board.  There's nothing wrong with your router.  The app has a bug that they're supposedly working to fix.

[ericB60]

Thanks

[ericB60]

The problem seems solved for Android but not on Windows 11
Eric