WRT54G Slow Internet with EMule/Bittorrents Open

Discussion in 'Cisco/Linksys Wireless Routers' started by OPaul, Sep 27, 2004.

  1. OPaul

    OPaul Network Guru Member

    Whenever I have eMule or Azureus open my Internet connection goes to hell, even if they are not actually downloading. I tracked the problem down to all the connections that are made with both applications. Apparently the WRT54G can't handle but so many connections. Unfortunately I've already sent in my UPC to get my rebate for the router so I can't do a return or exchange, so I'm stuck with router. What can I do to alleviate this problem? Do any of the other firmwares help?
  2. Kraven

    Kraven Network Guru Member

    I had exactly the same issue on my old Netgear DG834G, which I subsequently changed to a WAG54G which seems a lot better in my experience.

    However, regarding Emule, I stopped the DG834G locking up by reducing the number of connections per minute setting (or something similar), to about a quarter of what it originally was and it worked a lot better. The setting was at the very bottom of the settings page.

    On the Netgear, the problem was that the processor couldn't keep up with all the connections and the processor soon become way overloaded. This resulted in the router going extremely slow and I couldn't even log into the router. Only a reboot would make the router work properly again.

  3. ImprezaDude

    ImprezaDude Network Guru Member

    All low-end routers has a very limited support for the number of simultaneous NAT'et TCP connections. The best i've seen is around 5000 connections on low-end devices... You guys should do the following:

    Stop using P2P :lol: OR stop sharing.. OR set down the number of connections per. minute to something that works with your equiptment


  4. OPaul

    OPaul Network Guru Member

    What is the limiting factor in the router that determines the amount of connections it can handle? Are we talking about how much RAM it has or its CPU speed? Or some other factor?

    What are some higher end routers that can handle large amounts of connections?
  5. ImprezaDude

    ImprezaDude Network Guru Member

    Well there's several factors. What's eating resources is the NAT table, keeping track of all the TCP sequence numbers (controlling each connection from every host on the inside network to hosts on the Internet). The more NAT connections, the more memory you use and the more CPU you use.

    You propably look at +$1000 equiptment to be able to handle +10k simultaneous NAT connections.. If i were you i would set up a Linux PC on some old hardware to do the Nat stuff, it's cheap and it works.


  6. krunchy

    krunchy Network Guru Member

    Blocking eComet

    My WRT54G's internet conenction also goes to hell whenever my housemate turns on his eComet.
    Is there anyway I can specifically block these connections? Or block all torrents in general?
    I've tried QoS, port forwarding but am ultimately defeated by his computer, short of blocking MAC which is not a very nice thing to do.
    I've got firmware v2.04.4 v2.04.4

    Thanks very much for help.
  7. zaphod

    zaphod Network Guru Member

    1. turn on the firewall features
    2. dont forward the ports for the p2p-soft

    or if you want to give him 50% of the connection try setting up QoS... but use hyperWRT 1.4 for this.. i think it works even better than original..

    so thats it normally


  8. krunchy

    krunchy Network Guru Member

    Blocking p2p totally

    Specifically, I think I would just like to block eComet totally..Does anyone know which port numbers need to be blocked? I had thought 6881-6999 was it but apparently not.
    By the way, the firewall is already turned on.
  9. frogger3d

    frogger3d Network Guru Member

    I would say the wrt54g is like an old pc with linux on it.

    Why does the connection bog down with a big nat table? It should just refuse nat connections if it can't handle more..
  10. Toxic

    Toxic Administrator Staff Member

    lmao that the first i have heard the wrt54g called that....
  11. frogger3d

    frogger3d Network Guru Member

    Well, maybe it is more like a wireless zaurus with lots of ethernet ports.. ;)
  12. frogger3d

    frogger3d Network Guru Member

    I'm seriously disappointed by my wrt54g. I think I should have bought a wap54g and let my old linux pc in place, which does not come to a crawling halt.
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