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internet speed in shibby tomato asus rt-n16 is this a hardware limitation?

Discussion in 'Tomato Firmware' started by Dr.Romantic, Apr 7, 2013.

  1. Dr.Romantic

    Dr.Romantic Serious Server Member

    Hello

    first I would like to thank Shibby for his work. I'm so happy with my router on Shibby tomato build.

    I'm using 108 AIO
    dsl speed advertised up to 16mbps download and up to 10mbps upload

    while testing the speed of internet I notice the following speedtest readings:

    laptop connected wirelessly to dsl modem (no router in between):
    down/up = 10.10mbps/1.96mbps

    trough tomato (wireless connection):
    3.33mbps/1.66mbps

    I've tested further with openvpn:

    laptop connected wirelessly to dsl modem (no router in between)+connecting my openvpn client on my laptop:
    7.84mbps/3.96mbps

    trough tomato (wireless connection)+openvpn client on router:
    1.54mbps/4.04mbps

    openvpn client settings on router:
    compression=adaptive
    comp-lzo

    Transmit Power = 150mW

    htop cpu usage during test doesn't reach 100%
    at most it reaches 60%

    What can I do to improve the internet speed to the levels when my laptop is connected directly to the dsl wirelessly (10.10mbps/1.96 - 3.96mbps)? or is it a hardware limitation?

    Thanks
     
  2. koitsu

    koitsu Network Guru Member

    Remove OpenVPN from the picture and re-do these tests.

    Also, please do throughput tests to devices on your LAN (e.g. LAN-to-LAN testing), to determine if your speed issues are related to the Internet-bound portion of the network topology or if the issues are related to the wireless driver. Do not do speed tests using the router itself (e.g. copying a file from the router to your wireless device/laptop), instead do tests between two devices (e.g. a wireless device/laptop and a wired PC).

    Wireless in general is spotty and very unreliable; throughput tends to vary greatly depending upon almost an infinite number of reasons.
     
  3. jerrm

    jerrm Network Guru Member

    Also, have you tested the connection without the router? DSL rates are often variable due to line conditions and it is not uncommon that real world rates do not reach the advertised limits.

    The RTN-16 should easily be able to handle a 16/10 mbps connection without VPN on the mix.
     
  4. koitsu

    koitsu Network Guru Member

    Quoting him:

    I read this to mean his DSL modem is also a router with wireless capability, but he either (normally) doesn't use those features or disables them in the modem.
     

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