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WRT54G v2 and disconnection or connection floods?

Discussion in 'Cisco/Linksys Wireless Routers' started by Anonymous, Dec 13, 2005.

  1. Anonymous

    Anonymous Guest

    Ok I hope I have the right forum. I have a WRT54G v2 with 4.20.7 firmware. After I loaded up this new firmware (I was on v3 something) I notice a few things that I could really use your expert's guide and opinion on:
    1) while downloading from torrents etc, browsing websites will timeout
    2) if left on for a period of time, I may not be able to connect to the router
    3) after finishing downloading, throughput seems to be diminished

    So essentially I am wondering if it is because there were a "flood" of connections which may have overwhelmed the router? But even so, after all these connections shouldn't it free itself afterwards?
    Why if I leave the router on continuously does it sometime not respond?
    I am not against non factory firmware, just not familiar with it and unsure how to back off from it if it doesn't agree with the router somehow.
    Thanks in advance for your help.
  2. NateHoy

    NateHoy Network Guru Member

    You've pretty much nailed the problem. The Linksys default is to keep connections open for *5 days*. BitTorrent and their like open SO many connections that the connection pool overloads, and you can't open any new connections.

    Yes, it WOULD recover, once some of those connections time out. In 5 days.

    You could lower your simultaneous connections in your Torrent client to something like 20-30, I've found that a stock WRT54G can go several days with only 20 connections started up, because in all likelihood you wouldn't run out of your connection pool fast enough. But it still could go down.

    The only real solution is to load a "startup script" that lowers the 5 day timeout to something FAR more reasonable, like 1/2 hour. And here's the rub... No Linksys stock firmware for the WRT54G supports startup scripts.


    Welcome to the world of Third Party firmware. I'd look into HyperWRT Tofu, if I were you, as HyperWRT sticks as close as possible to the stock firmware while adding lots of new features. And it has a fix for the "BitTorrent Issue" built in (it changes the timeout to something like 10 minutes, from the default 5 days).

    Backing off is as easy as loading a minimalist firmware like DD-WRT Mini and then from there reloading the stock firmware.

    YES, you MIGHT "brick" your router. The risk is entirely yours to take. But that's very unlikely, and if your router can't hold up to the load, what do you have to lose anyway? ;)
  3. Yellowman

    Yellowman Network Guru Member

    Thanks Nate for the quick response and helpful tips. I apologize as I just did a quick feature lookthrough and by the time I read your post I had already upgraded to ddwrt v22 firmware. So far, I think it looks better but still unsure. There sure are more features that is for certain. I don't seem to lag as much but maybe I am just lucky for now. I did have some wifi drops yesterday but that could just be a one off.
    Just in case there are any other opinions I have already downloaded Linksys' firmware to reload in case I have to back out and reload another 3rd party firmware.
    Are there any specific settings within the ddwrt firmware that can help with "floods"?
  4. 4Access

    4Access Network Guru Member

    The 'IP Filter Settings' settings on the Administration page. 'Maximum Ports' is the max number of connections the router will handle and the other values are the timeouts for connections that aren't properly closed.

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