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Wired Static IP devices losing conn. after several hours

Discussion in 'Cisco/Linksys Wireless Routers' started by thelettere, Feb 25, 2005.

  1. thelettere

    thelettere Network Guru Member

    I recently replaced a D-Link 624 with a WRT54GS when I found out that Linksys doesn't not have a static DHCP server. No problem, assigned static IP's to two desktop PCs and a network printer. I still have the DHCP server enabled but bumped up the assignable addresses to exclude the static range.

    Now, however, each desktop PC loses internet access after several hours. The only way to get it back is to reset the computer (repairing the connection or rebooting router don't do it). I still have connectivity to the router, and the router still has connectivity to the outside. What could be happening here?

    I'm running firmware v3.37.6 and now HyperWRT 2.1b1. The client PC's are Windows XP SP2.

    Thanks for any ideas...

  2. Guyfromhe

    Guyfromhe Network Guru Member

    do the static devices still work when the others stop?
    do the DHCP devices still have IPs when they stop working?
    can you ping the router from the non-working machines?
    what OS are you running on these?
    have you tried statically assigning the ips of the other workstations to see if they stop disconnecting?
  3. thelettere

    thelettere Network Guru Member


    DHCP devices continue to work, it's only the static devices that are losing connectivity. I can ping the router from the static ip'd device, and go to the routers admin web page too. Windows XP SP 2 is the os.

    I received another suggestion from BBR that just using the router ip for DNS for static IP's might not be reliable with the Linksys and to use actual DNS server addresses instead. This advice corresponds to the problems I'm having... It's almost like the Linksys stops forwarding DNS info after several hours.

  4. Guyfromhe

    Guyfromhe Network Guru Member

    so if you statically assign the dns to the actual dns servers do all the devices work?
    do the DHCP devices (using the linksys as dns - or do they?) continue to work even after the statics have stopped?
    can you still access ips when this happens on all systems (ie definately a dns issue?)
    if it's just dns you should probably just statically assign the actual dns servers, i'm running custom firmware and I have the dhcp server give out my internal DNS server so I wouldn't know of any issue with the linksys DHCP...maybe someone else has experienced this?
    may try a different firmware see if that helps...
  5. PlusSix

    PlusSix Network Guru Member

    I am having a similar problem. Same router same firmware. I have one laptop connected by Wifi and my PC by wire. After a few hours I have to disconnect and connect the router to my cable modem to get my internet connection back. I previously had a Netgear WGT624 which didnt have this problem. Any opinions ?

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