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LAN Port stops working until Link Reset

Per Johansen

Hi

I have installed Sophos XG Firewall on a Shuttel Computer, and have now had a couple of times Firewall stop working.

I have now found out that XG Firewall just stop responding on LAN Port. All Out communication stops.

If I the take Link off on  Firewall LAN port - Using my Switch (Disable port) and then activate it once aging.

Everything just start working once again. -  I have not change any Firewall rules - It have LAN to WAN Any - No Web Filters right now.

By the way Link on LAN port are active when this happens with Link Okay on Switch, but no IP activity can't ping LAN port when error occur.

 

Are there someone else that have seen this  ?

Or have an Idea how to track what happens, as no clue in Logs nothing reported in those.



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  • 0 in reply to Per Johansen

    Hi Per, 

    Could you check the Arp table before and after the issue you have faced . Command on console 

    console> system dia utilities arp show

    Let us know if you have spot any difference. Also Check the Arp  table on Switch if possible.

  • 0 in reply to Aditya Patel

    Hi

    I have now seen this error again, I can see it only happens when I have high load for a period. 10-15 min. running with high Download.

    I did check ARP table on XG Firewall, and when error occurred, it did change some of the units on my network from an known MAC address to "Incomplete"

    My HP Switch did not change ARP table and does not show ARP for my XG Firewall only a couple of other devices.

     

    And I just have to "Reset Link" on Firewall and all continues.

    On Switch Link is Okay, but no IP communication, so I do the "Disable / enable Port" (Reset) and it runs once again.

    I did earlier thing it where an Switch issue so I have prior to this post changed switch.

    Regards

    Per