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WRT54G question...

Discussion in 'Cisco/Linksys Wireless Routers' started by brian45211, Jul 3, 2005.

  1. brian45211

    brian45211 Network Guru Member

    Hey everyone. I'm new here and have been reading this very cool forum for a while now. I'm fairly new to wireless networking so I'm still learning alot of things. I have a question that I've done some research on, but haven't came across anything. I currently have a WRT54G with 4.00.7 firmware. I have one PC hardwired to it and one laptop connected wirelessly. On my pc, my download speed seems to be great, around 700kb/sec. On my laptop however, my download speed is way less, sometimes around 100kb/sec and maybe up to 300kb/sec. Is this normal? If not, is there anyway to correct it? It doesn't matter how far away I am from the router either. Any help with this would be greatly appreciated it.

    Thanks alot guys :) :D
  2. windsurfer

    windsurfer Network Guru Member

    What type of wireless card are you running in the laptop?

    If it were a 802.11B card then your speed would not be as good on the laptop.

  3. brian45211

    brian45211 Network Guru Member

    It's not B, its a WPC54G 802.11g.
  4. brian45211

    brian45211 Network Guru Member

    I still haven't been able to figure this out, any help would be appreciated... Thanks guys.
  5. motherboard

    motherboard Network Guru Member

    (1) are you sure you are getting 700kb/sec. That is quite fast. Is your internet that fast?
    (2) I get 300... and I consider that FAST. I would have thought that the bottle neck is the internet, not the wireless speed.

    I suppose you can check raw transfer speed between your PC and your laptop. You should be getting 'G' speeds there. If you do, then you know that you may have a cached file or something.

    The other tool I have is called "site monitor"... comes with my broadcom wireless in my Dell laptop and it tells me the signal to noise ratio and how strong the signal is.

    I find that there is a lot of noise in the air that disturbs my signal. Cordless phone is notorious. I'm told microwave ovens (?), but I can't verify. I find I have to change channels to get away from the interference of the wireless gadgetry I have around the house. Maybe you've got something similar. :?
  6. Davido

    Davido Network Guru Member

    A great tool I would recommend is netstumbler which also displays signal/noise ratio.
  7. howardp6

    howardp6 Network Guru Member

    I would suggest you test with IPERF, which allows you to test the actual throughput. You can find it at http://dast.nlanr.net/Projects/Iperf/. You can try to transfer a large file between the desktop and laptop. You install it as a service on both machines and try adjusting the TCP receive window to see if that is limiting your throughput. I was able to get 43mbs on a transfer fron a wired to wireless PC using a WRT54GX witha WPC54GX. The best I could get with a WRT54GV1.0 and a WMP54Gv2.0 was about 23mbs through one exterior and one interior wall with plaster lath. The file transferred was Windows XP SP2.
  8. fizze

    fizze Network Guru Member

    bluetooth, microwave ovens, some coreless phones operate in the 2.4Ghz sepctrum, since its open and free (as in beer).
    if you set the WRT54G to channel: auto, it'll do so automatically.

    but the better guess is to adjust antennas to your desired direction, or get a directional antenna, which will result in much better reception.

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