@babinio74 - OK, now to diagnostics. With a fresh copy of lxpup64 (no savefile/savefolder), after installing the .pet, with your wired connection unplugged, first, let's see if the driver/blacklisting worked. in a terminal, run:
lsmod | grep wl && lsmod | grep b43 (note: that starts with a lowercase L, & pipe symbol "|" is usually shift & "\" key)
& look for wl & b43. The first should be there & the second not. If wl AND b43 are there, driver loaded & blacklisting failed.
In that case I'll need to post a different .pet
If wl driver is there AND b43 is NOT, driver is loaded & blacklisting worked. Then I would suggest using frisbee to connect to wireless. Do that by right clicking on taskbar network icon, choosing setyp, then wireless option & choosing frisbee when offered. Once selected, wait for it to detect networks & click on item wanted, then click connect, then input password. Should connect after about 10-20 sec.
If wl driver is NOT loaded, we need to check your adaptor by running, in terminal: lspci -nn | grep etwork
In that case please post output of that.
Lastly, your wifi device could be blocked - to check, run in terminal: rfkill list
Soft block can be removed by running in terminal: rfkill unblock all
Hard block needs some keyboard combo or bios setting - check your pc's manual (online?).