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Losing DHCP Gateway

This problem started with 17.5.0 GA.  The firewall is handling DHCP for my lan.  Users have started to lose the default gateway(the Firewall) randomly throughout the day.  I have to either reset the switch or the desktop network adapter in order to regain internet connectivity.  This does NOT happen to all users at the same time.

I updated to XG 115 SFOS 17.5.5 MR5 but the problem still exists.  This actually introduced another problem of not being able to access the gui from Sophos Central, but that's not as pressing.  Any thoughts on this would be appreciated.

Thanks

Larnel



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  • Just upgraded XG230 cluster to SFOS 17.5.5 MR5 last night and this issue started this morning.   Any updates from your side?  Ipconfig /renew or a restart works for us. 

  • Me too.  Seems to happen to some clients more than others.  Has anyone tried going back to 17.5.4?

  • Same issue, some devices loose their gateway and need a refresh DHCP. Devices that leave the network and return mostly.

    The XG external interface also does not update after a link failure which maskes some devices think they have lost their gateway.

    This has been happening on the internal devices since mr-4 was installed.

    Ian

    XG115W - v20 GA - Home

    XG on VM 8 - v20 GA

    If a post solves your question please use the 'Verify Answer' button.

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  • Same issue, some devices loose their gateway and need a refresh DHCP. Devices that leave the network and return mostly.

    The XG external interface also does not update after a link failure which maskes some devices think they have lost their gateway.

    This has been happening on the internal devices since mr-4 was installed.

    Ian

    XG115W - v20 GA - Home

    XG on VM 8 - v20 GA

    If a post solves your question please use the 'Verify Answer' button.

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