@Kevin_Z Yes you are right, I followed my delight by enabling the SIP once again, and the TP Link went missing...not a heart beat, dead as a door nail! I needed to disable the SIP again and reinstall...

Thank you @Kevin_Z, this worked a treat, I guess the SIP then needs to be enabled, right? rpg

Good evening @Kathy_Z , has there been any positive developments to share? Currently stuck with no intenet connection on my MacBook Air after the Big Sur update (using a work computer for this...