So i put a virus (With permission) on a friends computer. I ran the "Persistence" command when after i gained control for the first time. Everything has been working fine. I was able to get back in and everything. But then my VM (Which had metasploit and kali linux on it) stopped working. So i downloaded metasploit on ubuntu. I tried making a new payload and putting it on my own computer. With success. But when i tried to access my backdoor made from the persistence command again. I wasn't able to. I know that when i make a payload it asks me for my IP address. And that probably converts it to a MAC address. So it can find that computer. So could it be that?