Windows 10: Wifi - performance - am I going BONKERS !!

  1.    27 Feb 2016 #1

    Wifi - performance - am I going BONKERS !!

    Hi there

    I was over sorting out a friends Cable box system and I got some real weird wifi results. He needs the 2.4 GHZ so 5 GHZ wasn't an option

    Set his router to "N" only -- Wideband -- wifi connector showed 300 Mbs connection - but talk about SLOW -- and I tried all the available channels -- no difference -- and believe me in ISL we probably have one of the best broadband systems on the entire planet and not too much contention either.

    Set back to "G" only with narrow (20MHZ) option.

    Wifi card back to 150 Mbs connection (i.e half that of the "N" connection). Thing flew --go figure !!!!
    Download from a torrent site (not saying which - but a good test) was regularly over 4 - 5 Mb/s over wifi so not a bad result for the "G" wifi.

    Any idea why the faster broadband spectrum performed so abysmally compared with the lower, slower and older standard.

    At my home I use 5GHZ and regularly see 500 or more Mbs connection over wifi. The only difference is the cable boxes -- we both have the same ISP and they do support all the fast protocols. I suggested changing the cable box but he has a load of people using his Wifi and some of those PC's can only use 2.4 GHZ. Still doesn't explain why modern laptop was slower on "N" than the "G" standard while we were testing. -- On "G" we used channel 11 which usually seems the best one to use.

    Totally puzzeled.

      My ComputerSystem Spec

  2.    27 Feb 2016 #2

    I had an article saved that i was looking at when i had the same issues this solved it , dunno if itll be any help but the full srticle .... 5 Ways To Fix Slow 802.11n Speed - SmallNetBuilder

    Fix #3: Don't Connect Draft 11n and 11b/g clients to the same router

    The 2.4 GHz radio on an 802.11n single or dual-band router can also work with 802.11g and even 11b devices. But these much slower devices force the router to slow down to talk to them, which means a big throughput hit. Fortunately, the "legacy" mechanisms are pretty efficient and reduce throughput only when the slower devices are actively transmitting or receiving.
    As we showed in Add, Don't Replace When Upgrading to 802.11n, mixing 11n and "legacy" clients can reduce throughput by 50 to 80%. So if you are mixing old and new devices, you could be shooting yourself in the (throughput) foot. Either upgrade to all 11n clients, or use a separate 802.11g router or AP to handle your "legacy" stuff.
      My ComputerSystem Spec

  3. sml156's Avatar
    Posts : 667
    Microsoft Windows 10 Pro 64-bit
       27 Feb 2016 #3

    I was a little dismayed when I checked my internal network with iPerf3

    My supposed 300 MB WiFi connection was actually starting at about 25MB and gradually moving up to about 36MB
    My supposed 1Gig lan cards would max out at about 400MB

    I decided I would read up on how to tweak my lan settings to get better throughput - that lasted about 10 min's - talk about to long didn't read.

    I did find out that Linux right out of the box is twice as fast as Windows around 800 to 900MB

    EDIT: When testing your WiFi the internet is not the best way to find what your throughput is.
      My ComputerSystem Spec


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