|The Media Access Control address is a hardware specific identifier. It is not necessarily a Macintosh number.|
The only way I know of is to remove the security settings on the 4g setup.(assuming that its a 4g setup) However I wouldn't recommend that without doing some research on the topic. On another note, I am not sure that a 4g connection will cover the requirements for a ps3 speed needs, however I have never used a ps3.