The symptoms smell like more than one device having the same IP address; or the IP range of the LAN being set the same as the IP range of the WAN.
One thing you could do is compare the speed shown by speedtest.net <http://speedtest.net/> with the speed shown by a tool such as iStat Menus (in real time, while the test is running). If iStat Menus shows big speed going out, but speedtest.net <http://speedtest.net/> shows small speed making it to the far end, then your Mac is sending out a bunch of traffic, the Airport is routing most of it to the wrong device because of the IP address issue, and those packets are getting thrown away by whatever machine they are erroneously being routed to. > On Jun 9, 2015, at 2:48 PM, Jeff Weinberger <[email protected]> wrote: > > I am having a problem with my Airport Extreme base station which serves as > the router for all the devices (wireline and wireless) in my home. > > I've run several speed tests (mostly using speedtest.net > <http://s.bl-1.com/h/oZ57mqh?url=http://speedtest.net/>, but also checking > one or two others to be sure), and when my main wireline-connected mac is > routed through the airport, I am getting download speeds of ~2Mbps and upload > of 400Kbps (yes, K!!). When I connect the same mac directly to my cable > modem, I get speeds (same test sites) of ~100Mbps download and 10Mbps upload, > which is approximately what my ISP promises. > > I've tried disconnecting all other wireline devices and shutting off the > radio on the airport to run the test and be sure there is nothing else using > massive amounts of network bandwidth, and I still get the same slow speeds > through the airport with only one mac connected. > > I've restarted the airport several times, both with airport utility from the > mac and also by unplugging it for 10-15 seconds. This did not help. > > A related symptom: When I try to open the settings for the airport in airport > utility, it takes a while (2-3 minutes) to "read the settings") > > Questions: > > 1) Has anyone seen this, and if so, know what to do about it? > > 2) is there any way to tell what traffic is going through the airport, to see > if there's anything odd happening? > > 3) is there anything else I should try? or consider? > > The product is an Airport Extreme 802.11AC updated with the latest firmware, > purchased in July of 2014. > > Any help or direction is much appreciated! > > Thanks, > > Jeff > > _______________________________________________ > MacOSX-talk mailing list > [email protected] > http://www.omnigroup.com/mailman/listinfo/macosx-talk -- Macs R We -- Personal Macintosh Service and Support in the Wickenburg and far Northwest Valley Areas. http://macsrwe.com
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