MAC address problem

  fish1 19:04 10 Mar 2004
Locked

New PC bought - arrived today. tried to register the mac address with blueyonder but blueyonder say it is already registered. does this sound right? i thought mac addresses were unique? Manufacturer advised me to 'de-optimise' modem - but instructions they gave me don't allow me to. what is de-optimising modem? what is my next move with manufacturer?

This thread is now locked and can not be replied to.

Elsewhere on IDG sites

OnePlus 5 review

Alice Saey's mesmerising animation for Dutch singer Mark Lotterman

iPad Pro 10.5in (2017) review

Comment booster votre iPhone ?