tomato problem...router wont get ip address after modem outage (refresh \ renew also)

Discussion in 'Tomato Firmware' started by gjcomputer, Jun 24, 2009.

  1. gjcomputer

    gjcomputer Addicted to LI Member

    i believe this is a similar issue.

    i use the newest nd firmware, and have tested this on 3 routers, asus, linksys and buffalo, all same issue.

    if my cable goes out for a bit and the router loses the ip address, and the cable comes back, tomato will NOT get a new ip address, i really want it to be seamless, so if i go otu of town and the cable goes out, it should be right back on.

    this does not happen with any router flashed with dd-wrt (any build) and i would really much rather use tomato (as i have gotten many people from work using it, including my office wireless now) i will be happy to fork over some $ if we can get this figured out... any ideas? i have tried many different types of configuration (in tomato), with no success

    PS tomato user here for many years, and will always be a faithful tomato user!
  2. FattysGoneWild

    FattysGoneWild LI Guru Member

    I have always cloned my MAC address being on cable. Even Linksys advises it. No issues at all when doing that. Even with the problem you are having.

    If you do this. Power cycle both the modem and router. You should then not have the problem any more.

    Most cable ISPs use a MAC Authentication to establish Internet connections for end-users. A MAC (Media Access Control) address is assigned a unique 48-bit (6-byte) integer that is attached to an Ethernet NIC for each computer. To set-up your Linksys router to a Cable ISP, you have to do MAC Cloning. MAC Cloning is a procedure which enables a router to copy the MAC address of the PC that’s registered with the ISP.
  3. gjcomputer

    gjcomputer Addicted to LI Member

    FGW, can you try something like pulling the cable from your modem (coax cable) for a few minutes, enough to let your router lose the ip address... and the plug the cable back in and see if the router will automatically renew the ip (or in come cases get a new ip) i would be happy with either.

    i do clone my mac address actually, that is one way to get it to pull an ip manually, perform a random mac change, save, and viola, a new ip address, no reboot necessary. i would really need it to get an ip on its on, with no intervvention required,

    and FGW, i do appreciate the reply, i am hoping this is a simple fix on my end, and its nice that someone (lots of people around here) takes the time to help :biggrin:
  4. gjcomputer

    gjcomputer Addicted to LI Member

    more info. i have a 2 modem setup, with 2 seperate routers. 1 put dd-wrt on 1, and reinstalled tomato on the other, reconfigured the settings and the tomoato 1 dropped the connection and never recovered. the dd-wrt one is running fine. both modems are identical. the only way to get an ip with the tomato one is to unplug router and plug back in. any ideas?
  5. gjcomputer

    gjcomputer Addicted to LI Member

    bumpin... does anyone else have this problem? its an easy test really. unplug the coax cable from the cable modem for a few minutes, until tomato drops the ip, the plug back in. does it re-establish the ip in tomato without user input?
  6. bripab007

    bripab007 Network Guru Member

    I don't think I've experienced this problem, but our cable has been so rock-solid that I'm not sure I can even remember. I'll try this later and report back. Oh, and I do not use MAC cloning.

    EDIT: Okay, I tested it this morning, and Tomato automagically gets the IP and resumes normal internet connectivity after plugging the cable modem back in, without requiring a reboot or WAN restart in Tomato.
  7. asterger

    asterger Network Guru Member

    I believe my ISP, RR, manages the IP of the modem, NOT the PC(s).


    -- asterger
  8. ratchet

    ratchet Addicted to LI Member

    So relative to this thread, to clone my MAC I need to hit both the WAN Port and Wireless Interface buttons? Thank You!

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice