Do different ethernet cables really matter? How you're slowing down your internet

While most modern Ethernet cables you buy won't present an issue, some older Ethernet cables can actually throttle your internet connection's speed.
Ars Technica

Trying to set up my local network using OS X, and failing miserably. Help!

I've got a DSL connection/modem that doesn't seem to play nicely with my AEBS. I used to have my network set up as follows: 77.xx.xx.xx 10.0.1.1 10.0.1.x DSL Modem --PPPoE--> AEBS(providing NAT/DHCP) ...