Loss of LAN Coennectivity



  • I have a replacement SG-1000 (hardware problems with original and replaced under warranty) that losses LAN connectivity. It does this randomly, but happens several times a day. At first I rebooted the device and this would restore connectivity. But I have found I can just go to the LAN interface configuration page and save (without any changes) which seem to re-initialize the interface and this gets the traffic flowing again.

    So far I cannot seem to match up the loss of connectivity with any log file entries. Anyone know which log I should be looking at?

    I would like to try just unplugging the network cable but getting physical access to this device is limited. So so far all my troubleshooting has been via VPN access to the device.

    I feel I have a hardware issue yet but not only has the hardware been replaced but I am running newer code. So I was wondering if anyone else has had this problem.

    Hardware: SG-1000
    Software: 2.4.2-RELEASE-p1



  • An update…

    Opened a ticket with Netgate but do not expect any updates from them now until Tuesday.

    I have discovered that I can ssh into device (via VPN) and issue a ifconfig down / up on the LAN interface and connectivity is restored. So to keep this thing working until I can get on site or Netgate finds an issue I have added a crontab entry to run the ifconfig command every 5 minutes.

    I also checked netstat when connectivity is down and here is the output:

    [2.4.2-RELEASE][admin@shelter.applegate.privatedns.org]/root: netstat -i|grep cpsw1
    Name    Mtu Network      Address              Ipkts Ierrs Idrop    Opkts Oerrs  Coll
    cpsw1  1500 <link#2>7c:38:66:26:ba:30  6412951    0    0  5694350    0    0
    cpsw1    - fe80::%cpsw1/ fe80::7e38:66ff:f        0    -    -        1    -    -
    cpsw1    - 192.168.1.0/2 shelter              5536    -    -    2488    -    -

    [2.4.2-RELEASE][admin@shelter.applegate.privatedns.org]/root: netstat -i | grep cpsw1
    Name    Mtu Network      Address              Ipkts Ierrs Idrop    Opkts Oerrs  Coll
    cpsw1  1500 <link#2>7c:38:66:26:ba:30  6412963    0    0  5694356    0    0
    cpsw1    - fe80::%cpsw1/ fe80::7e38:66ff:f        0    -    -        1    -    -
    cpsw1    - 192.168.1.0/2 shelter              5542    -    -    2488    -    -

    [2.4.2-RELEASE][admin@shelter.applegate.privatedns.org]/root: netstat -i | grep cpsw1
    Name    Mtu Network      Address              Ipkts Ierrs Idrop    Opkts Oerrs  Coll
    cpsw1  1500 <link#2>7c:38:66:26:ba:30  6412984    0    0  5694367    0    0
    cpsw1    - fe80::%cpsw1/ fe80::7e38:66ff:f        0    -    -        1    -    -
    cpsw1    - 192.168.1.0/2 shelter              5547    -    -    2488    -    -

    There are no output packets for IPV4…</link#2></link#2></link#2>