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Network troubles internal network nic

chewbakka
Hello,

i'm havin troubles with my internal network nic. I'm running a ASG 220 with Firmware 9.308-16. 
Sometimes we are loosing the network connection to the nic completely causing loose of connectivity from our LAN to the outside as well as from the outside / remote offices to the internal network (via site 2 site). 
After a few seconds / minutes the connection is available again with bad latency and after another minute or so everything is back to normal. 



Which logs should i dig into?


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  • 0
    That sounds more like a hardware problem.
    Have you tried connecting directly to the UTM (without switch or long cables)? Are the pings still bad?
    Have you checked all cables?

    Also try to check the load on the shell (via SSH) with the command top.

    ----------
    Sophos user, admin and reseller.
    Private Setup:

    • XG: HPE DL20 Gen9 (Core i3-7300, 8GB RAM, 120GB SSD) | XG 18.0 (Home License) with: Web Protection, Site-to-Site-VPN (IPSec, RED-Tunnel), Remote Access (SSL, HTML5)
    • UTM: 2 vCPUs, 2GB RAM, 50GB vHDD, 2 vNICs on vServer (KVM) | UTM 9.7 (Home License) with: Email Protection, Webserver Protection, RED-Tunnel (server)
  • 0
    switching to another cable didn't help.
    The problem is only showing up 3 or 4 times a day. 
    Now everything is good as it should be.

  • 0
    If switching the External interface to a different NIC doesn't solve this, I would suspect your ISP has a problem.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0
    I think i didn't explain it properly, the pings are to my internal nic of the asg, so this time i can't blame it on my isp.
    i tried switching "internal" to a different nic, but my site2site ipsec vpns didn't come up and people started coming to the office early so i switched back. 
    Is the something else to do when moving "internal" from one nic to another?
  • 0
    So i was now able to switch my internal network from eth0 to eth2 but it didn't change the network problems. 
    What is also suspicious is that i only experience the latency and packet loss if i ping the utm from our network and not if i ping hosts inside the network from the utm.
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