Hello,
I'm back to tell you that googling for my MacBook wifi card/model # I've eventually found the solution to all my problems!
And the main reason was still the driver... I've understood it when (through a command that now I don't remember) I've seen that the active working driver was still "wl" and not "b43".
So, with the help of answer #2 posted by chili555 (https://askubuntu.com/questions/5573...-bcm4321-doesn) and a post by Hadaka (https://ubuntuforums.org/archive/ind...t-2327185.html), I "purged" both wl and b43 driver, re-installed b43 and blacklisted wl:
Code:
sudo apt update
sudo apt remove --purge bcmwl-kernel-source
sudo apt remove --purge firmware-b43-installer
sudo apt install firmware-b43-installer
sudo -i
echo "blacklist wl" >> /etc/modprobe.d/blacklist.conf
exit
I've done also this
Code:
sudo iw reg set US
sudo sed -i 's/^REG.*=$/&US/' /etc/default/crda
but I'm not sure it was necessary.
With this modifications now the wifi is working perfectly, with both routers.
Thank you all guys!
Linux is always the best community!
Bye, R.
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