I THINK I have a fourth gen model. It's not the current vertical 6th gen. And I THINK there was another "flat" one in between that and mine, that basically had better antennas or something. Anyway, I've now twice had to reboot my Airport Extreme to get Ethernet working right. A couple of weeks ago I had one of the ports just stop transmitting anything. Everything connected to that part of my network just disappeared...rebooting my Airport brought everything back. Then, some time this week (I finally caught on last night) my connection that should be 1000Mb was only doing about 10Mb. Again, rebooting the airport fixed it. Just wondering if anyone knows what's going on, if maybe a port on my airport is going bad, or...? I've had it running since I guess...2011? Maybe 2010 actually, which would make sense as the 5th gen hit in 2011. This is the first problem I've had with it. Before this I had a Linksys router (without wifi) which (after 7+ years of use) started suddenly running SUPER slowly...so possibly the same thing that's happening here.