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    wifi slow on own network compare to lan

    Discussion in 'Networking and Wireless' started by Randall_Lind, Dec 14, 2008.

  1. Randall_Lind

    Randall_Lind Notebook Consultant

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    I have an Acer 5315-2713 and wifi I was transfering like 20GB of stuff from pc to laptop. When on wireless transfer rate top was 2.07mb however when I plug in the lan cable I got the rate of 7.53mb+.

    The wireless is an Atheros AR5007EG Wireless Network Adapter why so slow? The card is set for 8011.b and G.

    B = 1-11mbps
    G = 1-54mbps

    My router is a Linksys WRT54G

    So I can only guess the wifi is stuck on B and not doing G.
     
  2. gengerald

    gengerald Technofile Extraordinaire

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    The Cat5 cable you are most likely using is 100mps and wireless G is theoretically almost half that with a true connection of much less. If you were connected via wireless B, you would see 2mps+/- as an actual connection speed.
     
  3. Randall_Lind

    Randall_Lind Notebook Consultant

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    So seeing 2.13mb transfer is normal on wireless? So if I have a large file I will just plug in the Cat5. thanks
     
  4. gengerald

    gengerald Technofile Extraordinaire

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    Exactly. Either use a network configuration with Cat5 or go client to client with cat5/firewire. The c to c will require some extra steps, but in my experience you will not have to by an a to b cable for this, as the adapteers automatically make the channel switch. Basically, going through a wired router is the easiest thing.
     
  5. Wirelessman

    Wirelessman Monkeymod

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    It seems low to me, but data throughput will indeed be less than what the standard specifies, 11Mbps. Wireless protocol padding (including security), application, computer and number of users will slow down the data transfer.
     
  6. nizzy1115

    nizzy1115 Notebook Prophet

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    If you do not have any wireless b devices remove that option and make your router g only. But yes, wired will be faster.
     
  7. Hep!

    Hep! sees beauty in everything

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    54mbps (wireless G) is 54mbps, NOT 54MB/s.
    So... his theoretical, maximum burst speed is 54/8=6.75MB/s
    Take into account collisions and therefore re-transmissions occurring in large transfers, 2.13MB/s sounds right on the money to me.

    Seeing as he got a true throughput of over 2MB/s, we can safely say that he was not connected via 802.11b (11mbps) protocols, as 11/8<2.

    As other posters have said, for large transfers, go wired!
     
  8. Wirelessman

    Wirelessman Monkeymod

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    I don't think we were talking about 2.13MB/s, the OP said really 2.13Mbps.

    Anyway, latency and data transfer is affected by so many things; communication protocols, channel RF bandwidth, computer source position, network elements (routers, bridges, etc), so is hard to nail down the reason, but we can always improve the throughput by either getting closer to the router, putting to the max the transmitting power of the router, etc.

    It's obvious that an Ethernet connection is faster.
     
  9. kegobeer

    kegobeer 1 hr late but moving fast

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    Actually, the OP stated "2.13mb transfer", which could be either 2.13MB/s or 2.13Mbps. Without more information from the OP, we'll never know which one is correct.
     
  10. Hep!

    Hep! sees beauty in everything

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    I assume he got the speed based on what the Windows transfer was telling him, is this incorrect? It seems a lot more likely that he meant MB/s, people rarely talk in terms of mbps when talking about file transfers.
     
  11. Wirelessman

    Wirelessman Monkeymod

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    The OP referred to b and g standard using "similar" nomenclature, besides that he was missing the "s" (time unit).

    I can hardly imagine the OP alluding to 2.13mb in one hour. So, we can rightly assume that the OP meant mbps, which it should really be written Mbps.
     
  12. kegobeer

    kegobeer 1 hr late but moving fast

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    The OP didn't say where the numbers came from, but I agree with you that the OP probably meant MB/s.
     
  13. Randall_Lind

    Randall_Lind Notebook Consultant

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    That is correct Windows transfer rate was 2.13MB comparre to 7.??+ with cat 5 cable connected.

    Also if I pick G Only will that effect me if I take my laptop to Starbucks or some other place with a wifi hot spot?

    Update:Never mine it is b only or b/g I thought about buying a Linksys WUSB54GSC Compact Wireless-G USB Network Adapter with SpeedBooster
     
  14. nizzy1115

    nizzy1115 Notebook Prophet

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    I wasnt talking about on your computer...i was talking about on the router.

    Also, what encryption is the wireless using?
     
  15. Randall_Lind

    Randall_Lind Notebook Consultant

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    I am using WPA Pre-Shared key -TKIP and the router is set to G only. WEP kept dropping reason I use WPA
     
  16. Wirelessman

    Wirelessman Monkeymod

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    WPA will certainly eat more real throughput, compared to WEP or not security at all.