"Cannot connect to this network" error

Discussion in 'Tomato Firmware' started by DocChloroplast, Aug 8, 2018.

  1. DocChloroplast

    DocChloroplast New Member Member

    Hi everyone,

    I'm running Tomato v1.28.1816 on a Linksys WRT54g alongside my ISPs DSL router/modem (Motorola NVG589) in order to take advantage of its generally better WiFi capabilities. Over the last few days, however, the WiFi on the tomato router has been dropping, and my Windows 10 machine just gives me a generic "cannot connect to this network" error. I can access the router with a wired connection, but I'll admit I may be missing something, because I can't see any issues when I check it. Either a hard reboot (unplugging and plugging in the router) or a software reboot from the left-side links does the trick, but again, eventually it will give me this error at some point.

    Could I get some ideas as to what I should look for if this happens again? I'll provide as much information as I can. Thanks.
     
  2. Sean B.

    Sean B. LI Guru Member

    Has this configuration been working for an extended period and suddenly started doing this? Or has it been acting this way sense you've set up the WRT connected to the DSL modem?
     
  3. bjlockie

    bjlockie Network Guru Member

    Try connecting to an IP.
    I wonder if is a DNS failure.
     
  4. Monk E. Boy

    Monk E. Boy Network Guru Member

    If you changed any of the crypto settings on the router before it started displaying this error, you may need to remove the saved network from Windows and add it in again. 10 is a lot more sensitive to WiFi changes than 7. If you, for instance, replaced your ISP's modem/router/WiFi box with a Tomato-based Wifi router (e.g. wrt54g) and kept the same network name & encryption settings, 10 will refuse to connect to the new box until you forget it and add it again.

    This is especially true if the old box was 802.11n or ac and the new box is 802.11g, or vice versa. Its only if you're going from 802.11n to 802.11n, 802.11ac to 802.11ac, etc. that 10 won't freak out.

    They're trying to protect you from a man in the middle attack where someone sets up a new WiFi network with the same encryption settings to try and capture all your data flowing through the connection.
     
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