Airport Extreme 2013 - downlink performance problems
Having problems with downlink (WAN) performance on our Airport Extreme 2013. I have had the same problem with two different (brand new) Airport Expresses I have purchased.
I just bought an Apple Airport Extreme (2013 model) running software version 7.7.1 (the latest) to use in our office of about 20 people. We have a 30 mbps up / 30 mbps down Internet connection running on fiber. We have an Ethernet handoff from our ISP. There is no modem. We have had the same ISP for 8 years and never have had performance problems with our fiber.
When I plug my Macbook Air 2013 directly into the ISP I consistently get 30 up / 30 down with no problems. Using a static IP from our provider.
When I plug in our Airport Extreme 2013 and configure it a static IP and plug my laptop (using DHCP in this config) via ethernet, I get no better than 30 mbps / 15 mbps down. I am not using wifi at all - only ethernet.
I have configured the "Ethernet WAN port" to 100 mbp full duplex at the request of my ISP. Also had the Apple default "Automatic (default)" setting as well and that didn't make a difference.
The performance of the router is fine EXCEPT for our downlink speed which for us is the most important.
I called Apple tech support and they don't have an ideas. I have done a factory reset several times, swapped ethernet cables, and even bought an extra Airport Extreme to a/b test with.
Anyone have an ideas on what to try next?
Thanks!
Airport Extreme 2013-OTHER, OS X Mountain Lion (10.8.4)