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Author Topic: Different download speeds on different devcies  (Read 2531 times)

nhkam

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Different download speeds on different devcies
« on: December 17, 2014, 07:56:48 PM »

Hi,

I apologize if this has already been asked but I couldn't find an answer after searching the posts.  I own a DIR-655 router and love it.  Several years ago I purchased a Motorola SB6120 Docsis 3.0 modem for my Comcast service.  When my rate went up so I changed my service.  I got a Docsis 2.0 eMTA modem and was happy with 24Mbps but when my rate increased again, I changed plans again.  Now I am on a 105Mbps plan and plugged in my old SB6120, registered it with Comcast, and it works.  I plugged in my DIR-655 again and it worked too!

Now I have a problem and can't figure out how to solve it.  I plugged a desktop into the back of the DIR-655 with a LAN cord and my speed is 112-115Mbps which is awesome!  However my notebook (Intel Centrino Advanced-N 6205) gets only 58Mbps speed, my iPhone 5C gets only 29Mbps, my iPhone 4S gets only 25Mbps, and my PS3 gets only 37Mbps (wired into DIR655).

I nothing about networking but I find it strange that all my devices can't reach their potential.  All have the capability of 300Mbps but since my service is 105Mbps I expect all to be running at close to 100Mbps.

Are there DIR-655 settings I can change to reach maximum speeds with all my devices?  Thanks for the help!

Kevin
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FurryNutz

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    • Router Troubleshooting
Re: Different download speeds on different devcies
« Reply #1 on: December 18, 2014, 07:40:07 AM »

Link>Welcome!

  • What Hardware version is your router? Look at sticker under the router case.
  • Link>What Firmware version is currently loaded? Found on the routers web page under status.

 Is not really recommended to speed test via WiFi due to many variables that can cause inaccurate results....Wired speed testing is preferred. Various devices including the router may not be able to sustain or achieve 100Mb xfer speeds on WiFi. As long as your getting to spec ISP speeds on wired LAN, your good.

  • Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by that maybe causing interferences?
  • Any other WiFi routers in the area that maybe causing interferences? Link> Use InSSIDer to find out. How many? Use v3, its free.
  • If you have any of these options, Try turning OFF or ON Short GI, WLAN Partition, Extra Wireless Protection and HT 20/40 Co-existence if you have it. Also testing with HT20/40Mhz Co-existence enabled will impact results as well. I prefer to use this option OFF. Recommended settings are default. Under Advanced/Advanced Wireless.


Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
3-6' feet minimum safe distance between devices.
Placement on main level floor and central in the building and WELL ventilated is preferred. Not in basements or closets as building materials, or near by electronics devices could interfere or hinder good signal propagation.
http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials
« Last Edit: December 18, 2014, 09:13:03 AM by FurryNutz »
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Cable: 1Gb/50Mb>NetGear CM1200>DIR-882>HP 24pt Gb Switch. COVR-1202/2202/3902,DIR-2660/80,3xDGL-4500s,DIR-LX1870,857,835,827,815,890L,880L,868L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L,960L and 8000LH.