R6400 Slow Internet/WAN on Tomato Firmware.

Discussion in 'Tomato Firmware' started by Haldi4803, May 11, 2017.

  1. Haldi4803

    Haldi4803 Reformed Router Member


    For a while i've realised that our Internet speed is maxed out at around 280mbit/s, after calling the Provider they said we should connect the PC directly to the Cable Modem (TC7230). Did so and made a Speedtest.

    Everything works fine!

    So using the Advanced Tomato firmware "tomato-R6400-AT-ARM-3.4-140-AIO-128K" i had huge problems with Speed.
    Maximum 300mbits, Average 285mbits.... Something clearly is wrong here... right? (Oh.. and yeas, i did a NVRAM reset during these Tests, so this result here is the best i could get out of various test over multiple days!)

    To get back to Stock Firmware i've flashed "dd-wrt.v24-K3_AC_ARM_STD_128K" and of course made a Speedtest with this Firmware......
    You can see the Maximum going up to 300mbits, but the average stuck on 120... uhgs!

    So yeah, i've finally flashed back Stock Firmware, "R6400-V1.0.1.22_1.0.17" to be exact.
    Now look at this! it doesn't look as sweet as on the PC, but it's a Solid 387mbits Average with 497mbits Peak.

    So yes, Stock Firmware is WAY faster than DD-wrt or Tomato, so there has to be something wrong....
    Is it a configuration error? or something in the Firmware?

    Anyone can help me out here?

  2. lancethepants

    lancethepants Network Guru Member

    Advanced -> Miscellaneous -> CTF
    Have you tried enabling this?
    Haldi4803 likes this.
  3. Haldi4803

    Haldi4803 Reformed Router Member

    I did, and it did increase the speed by quite a bit!

    Why is this not activated as standard?


    This is with Tomato and CFT activated and Overclocked to 1000Mhz

    Thanks for all the Help :) this small setting solved it all.
    Last edited: May 13, 2017
  4. lancethepants

    lancethepants Network Guru Member

    It's not enabled by default, probably because it's incompatible with a few notable tomato features, like; qos, bandwidth monitor, IP Traffic, Bandwidth limiter etc.
    Monk E. Boy and Elfew like this.
  5. zamanex

    zamanex Networkin' Nut Member

    I don't even have this option under Advanced>Miscellaneous, what gives? How can I get it?

    My router is E4200v1 running shibby Tomato Firmware 1.28.0000 MIPSR2-121 K26 USB AIO
  6. pomidor1

    pomidor1 Networkin' Nut Member

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