My cable modem is down and while I'm waiting on a replacement, I am connected to an xfinity wireless hotspot. But I cannot connect my Samsung smart tv to it so I'm trying to spoof my desktop mac address as the Samsung TV in order to login with my Comcast credentials but the Samsung Mac address starts with 5C and it looks like wifi mac addresses need to start with 02? Any ideas? I tried changing it manually in device manager and using Technitium MAC Address Changer v6.