New iMac, cant connect to internet via comcast

[shoolie]

So I just bought a new iMac today and unfortunately I can't connect to the internet via my comcast cable modem using ethernet cables. For whatever reason the mac is not pulling up an ip adress, I went through all the shinanigans with comcast over the phone trying to connect through PPPoE and messing with a bunch of ethernet settings but nothing worked. They scheduled a tech guy to come over Saturday but I really don't want to wait that long.

I'm not tech savvy but if any one could please help me out I'd appreciate it.

 

[AL2TEACH]

Don't use PPPoe, use the DCHP or DHCP or whatever it's called and it should fill in the info.

 

[old-wiz]

PPPoE is usually what the Comcast router uses to communicate back to the node. You use DHCP on your PC. Unfortunately the techs usually are not familiar with a Mac.