Are There Illegal MAC Addresses? Can They Cause Issues? or Are There Illegal MAC Addresses? What You

OP here—wow, didn’t expect so many replies!

So basically, no *illegal* MACs, but spoofing can cause headaches. Got it.

Tried changing mine with Technitium (thanks @user3) and my router DID freak out lol. Had to reset it.

Follow-up Q: Anyone know if VPNs hide your MAC too? Or is that a whole other thing?

(Also, typos still happening—phone keyboard hates me.)