Wireless settings to keep connections alive

Discussion in 'Tomato Firmware' started by Fornax, Oct 5, 2013.

  1. Fornax

    Fornax Reformed Router Member

    Since upgrading from vanilla Tomato 1.23 to Shibby 1.28, my wife's laptop has been experiencing periodic wifi disconnections. Checking the syslog, she's getting:

    CTRL-EVENT-DISCONNECTED bssid=xx:xx:xx:xx:xx:xx reason=4
    One suggestion I found from a little googling was to check the router's wireless keepalive settings. Being pretty green regarding the low-level wifi stuff, I'm not really sure which of the settings might help. Anyone have any suggestions?
  2. koitsu

    koitsu Network Guru Member

    I would suggest making sure you're running the latest driver set for the wireless chipset in her laptop. There are vendor incompatibility issues.

    I would suggest installing inSSIDer and letting it run while she uses the laptop (indefinitely) and then when it craps out/disconnects have a look at the inSSIDer history/results for analysis.

    Chances are the problem is either driver-level, hardware-level, or is caused by interference by devices around you which you cannot shield from (baby monitors, microwaves, other APs, etc.).

    You also have given zero information about the wireless configuration. What security mode are you using (describe it exactly, do not summarise)? Are you using MAC filtering? 802.11b? 802.11g? 802.11n? What model of router exactly? What wireless chipset is in your wife's laptop? Etc. It all matters.

    The only setting I would suggest changing on your router is Advanced / Wireless / Country/Region (set it to your country), and then under Basic / Networking / Wireless section instead of Channel being Auto, you should click "Scan" next to it (be aware you will lose wireless access during this time) and try to find a channel number that's permitted in your country (you will need to look these up; if you're in the US the valid non-overlapping channel numbers to use are 1, 6, or 11 (talking about 802.11g here). Find the one which has the least APs on it and select that instead of Auto. You should not need to change anything on your wife's laptop.

    I cannot help past this point / issue takes too much time to try and diagnose remotely, really requires someone to be there in person who actually understands 802.11 protocol and how to diagnose such problems.
  3. Fornax

    Fornax Reformed Router Member

    Thanks for the reply. I'll try to get some more technical detail together tomorrow when I have some time. Not sure I need a full network analysis, though. The only variable is the firmware upgrade... worked fine for years on vanilla Tomato 1.23. The error she's getting is apparently a "disconnected due to inactivity" sort of thing. Was hoping that pointed to a setting that could be played with. If not, I'll probably just go back to the older firmware after my need for VPN has passed. As much as I like learning new things, I'm not sure she'll have the patience. Heh.
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