slow(er) wireless after upgrade to 1.23

Discussion in 'Tomato Firmware' started by sander815, Jan 9, 2009.

  1. sander815

    sander815 Network Guru Member

    i have been running 1.19 for quite a while, with good results.
    my ISP is 30 mbit, and i get around 2.1 Mb/s download speeds, with 2 routers in WDS.
    Last week i upgraded, and speeds went down to a max of around 1.10 Mb/s.
    What could have gone wrong?
    Wireless between a nas attached to the 1st router and my desktop on the other router is even worse, 800-900 Kb/s
  2. fritz

    fritz Addicted to LI Member

    I change my system from actual DD-WRT to Tomato 1.23 and I was happy with the new system. The WAN speed was very good, much better than DD-WRT but the WLAN speed was very slow. With DD-WRT I had e.g. 15000-17000 and with Tomato only 5000. I don`t Know why???

    best regards
  3. dadaniel

    dadaniel Network Guru Member

    What router do you have?
  4. fritz

    fritz Addicted to LI Member

    I have a Buffalo WHR-HP-G54 Router.
    My Internet Speed is 30Mbit/s:).
    When I do a Speedtest (WAN/LAN) I get a result of 29,8Mbit/s. With (WAN/WLan) I get only e.g. 5400:mad:????
  5. szfong

    szfong Network Guru Member

    DD-WRT wireless WILL be faster on most router because it's default tx power levels on its v24 are a bit higher and coupled with it's tx & rx amps. It is at a level that they believe is the highest without introducing significant noise to it's own signal & burning out the transmitter. It'll pollute the neighborhood spectrum a bit more than Tomato. DD-WRT with it's added tx power works very nicely with the WHR-HP-G54. It is their recommended DD-WRT platform. Additionally, they even sell pre-flashed WHR-HP-G54 before Buffalo's legal troubles.

    So, try increasing the tx power to a safe level in Tomato. Under Advanced Wireless, Increase Trasmitter Power, then Enable HP Amplifier, and Enable Enhanced RX Sensitivity, may ALSO wish to try AfterBurner & also FrameBurst options.

    Good luck.

  6. fritz

    fritz Addicted to LI Member

    I try it but with no better results:mad:.
    I go back from dd-wrt to tomato software because the WAN/LAN speed was much better!
  7. dadaniel

    dadaniel Network Guru Member

    Please contact the developer of tomato via [​IMG]

    I think he can debug the problem with you
  8. sander815

    sander815 Network Guru Member

    i am using 3 wrt54g's, one as router, and 2 as wds connected to that router
    wds0.49153 00:13:10:83:B7:EF -58 dBm 41
    wds0.49154 00:0F:66:C7:A2:13 -82 dBm 17

    the 1st has good connection, as its only 3 meters away from the main router
    the other one is around 15 meters away from the main router

    via LAN on wds0.49153, around 1.4 Mb/s, via Wlan to wds0.49153, only 400-500 kb/s

    the other one, wds0.49154, LAN: 800 Kb/s to max of 1.1 Mb/s, via wlan, around 500 kb/s

    Via Wlan on the main router(the other 2 switched off, to be sure), 2.4 Mb/s. What can be my problem?
  9. fritz

    fritz Addicted to LI Member

    please can anyone write down the optimal settings for a Tomato-WLAN connection for buffalo WHR-HP-G54.
  10. szfong

    szfong Network Guru Member

    Hi fritz,

    no setting will help. For dd-wrt disabling SPI Firewall will go along way. Not sure what command(s) will disable the Tomato Firewall. wireless consumes quite a bit of cpu, try doing some wireless tests across your lan and you'll see why. It's hardware related, the bcm5352, cannot handle routing 30Mbps fios AND wirelessly communicating at such speeds. It ain't gonna happen. From tests, I notice dd-wrt will "scale" a bit better than Tomato by distributing the load of routing and routing+wireless at high speeds and more clients can connect to a AP while still being resposive, but cpu usage was still the bottleneck. Check your cpu load... Avoiding wireless will maintain your wired lan speeds and each additional wireless connected client will drop your wan-lan by quite a bit.

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