So before I explain my situation, here's how my network is set up: I have ethernet going to various drops around the house and they work fine. However, I put another ethernet switch at one of the drops and plugged my laptop (MacBook Pro) and 2nd PC (iMac) into it. However, neither are getting ethernet connections. They recognize that an ethernet cable is plugged in, but it just says "Self-Assigned IP" with a yellow dot next to it, and won't connect. When I plug the second switch into the first switch, the light on the first switch steadily flashes on and off and will sometimes blink for a split second. The other end of the cable that's plugged into the second switch hardly ever lights up. Furthermore, the lights of the ports that my Macs are plugged into on the smaller switch are lighting up, but they're just staying on all the time with minimal blinking or flashing. I swapped out new ethernet switches at both locations, as well as swapped out the ethernet cable connecting the two switches together, and had the same problem, so it's not a faulty switch or cable. To thicken the plot even more, I plugged my MacBook Pro directly into the first ethernet switch (thus bypassing the second switch) and it connects just fine.. Anyone have any suggestions on what I could do? The first switch is a Netgear GS316 and the second switch is a Netgear GS105. Both are auto-sensing.