Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Possible Duplicate:
What happens when two PCs have the same MAC adress?

At my school, there is a WiFi network where you can register up to one computer or phone. I, however, wish to connect my phone and my computer (Windows 7). I talked to an IT guy at my school and he told me that it registers the computer based on the MAC address (For the record, he's the one who suggested I spoof). So, I got my phone's MAC and now I want to change my computer's address to the same thing. I found this link and this video, so I know how to change it.
I was wondering if that would run into problems because they are normally on the same network at home.

share|improve this question
add comment

marked as duplicate by Oliver Salzburg Oct 21 '12 at 18:47

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

1 Answer

up vote 1 down vote accepted

If you use the same MAC address for both the computer and the phone at the same time at home then you will have problems.

If you wait about 10 minutes then the ARP cache from your OS will time-out and no problem will occur.

If you want to more details read up on TCP/IP and ARP.

share|improve this answer
    
So I wait connect one then wait ~ 10 minutes then connect another it'll be fine? Is that what you're saying? Just to clarify... –  Hobbit Hole Oct 20 '12 at 5:11
    
No. You can't have two devices with the same MAC connected simultaneously. So, you disconnect first device, then connect another. –  Serge Oct 20 '12 at 6:45
add comment

Not the answer you're looking for? Browse other questions tagged or ask your own question.