Cannot get UPS monitor to work

Discussion in 'Tomato Firmware' started by asmit, Oct 10, 2013.

  1. asmit

    asmit Reformed Router Member

    I've been searching the web high and low and I don't know why I can get the UPS monitor to work on my router.

    I'm using 1.28.0000 MIPSR2-112 K26 USB AIO on a Linksys e3200.

    I've enabled USB 1.1 support and have my APC Back-UPS Pro 1300 connected via USB cable to the UPS data port.

    I've run the following commands:
    nvram set ups_enable=1
    nvram commit
    service ups restart

    But all I can see on the UPS monitor page is: Not available: upsfetch: tcp_open failed for port 3551
    Unable to communicate with the UPS on

    I know it doesn't do much, but I would really like to get this feature working. Can anyone suggest something for me to try? I don't think it matters, but this is a secondary router which is connected to my primary (Asus n66u). All the settings I've configured and commands I've run have been on the secondary router (the one the UPS is directly plugged into).

    Please help.
  2. JoeDirte

    JoeDirte Networkin' Nut Member

    Just as a test, I'd suggest connecting the UPS to a computer via the USB cable. You'll have to install the APC software (powerchute personal edition or something similar) to communicate with the UPS, but you can always uninstall it later. This will let you test that the USB connection is working on the UPS. I've also used the APC software to disable the audible alarm on the UPS - something you cannot do without the APC software on some UPSes.
  3. JoeDirte

    JoeDirte Networkin' Nut Member

    Oh another thing to try is to connect the UPS to the router and reboot the router. My UPS sometimes loses communication with the router but it usually comes back on its own. A reboot of the router usually returns the UPS communications. I've tried restarting the UPS service, but it doesn't help in those cases. Just time passing or a router reboot. I don't worry about it too much since the router is still protected even if the comm is lost.
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