My mac adress has changed ¿Is that normal?

psaez84

Honorable
Jan 8, 2018
107
2
10,595
Hi

I'm using Windows 10 with a Gigabyte Z170-HD3P-CF motherboard that includes internal LAN connector. So I simply have a ethernet cable from the motherboard to the router.

Until now I had a mac adress and I set that mac adress to a fixed internal IP in my router control panel because I need some ports open for this computer.

The problem is that I noticed that now the ports are not working so I checked the router control panel and i saw that this computer is not using the fixed IP becuase now this computer haves another mac adress.

How is that possible? I didn't change anything. I didn't reinstall windows 10 or change the motherboard and I didn't change the router configuracion.

How can the mac adress of a computer change without doing nothing?

Thank you
 

BuddhaSkoota

Admirable


Instead of using the router control panel, use ipconfig on the PC to check the adapter's MAC address and compare it to what the router shows.

Just a guess, but it could be that the router has assigned the IP address to a different device on the network (if the address wasn't actually fixed to your PC).

A better method for port forwarding is to assign your PC's adapter a static IP address (outside of the router's DHCP range), and use that address when forwarding ports.