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Losing DHCP Gateway

Larnel Hight

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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  • 0

    Do other people mark this as solved with MR8? I still have the feeling that this issues is there.

     

    I'm getting a IP,gateway and dns from DHCP but I'm not able to ping to the internet directly, pinging our browsing a local SMB share works instantly. Looks like DNS is not able to resolve right away. We use our internal server for DNS.

     

    After a ipconfig /renew command it is working again, our just wait a few minutes that also solves the problem.

  • 0 in reply to TonV

    Mine has been good for about a month since i switched to the old dhcp method. I looked today and there is a new firmware update but the only fix it mentions closest to the problem is about wifi. 

    "NC-48031 [Interface Management] Wifi client did not get gateway and other config after reboot until enable and re-enable the wifi on client."

    Leter I will upgrade which I heard defaults back to the new method and then I will see what happens.  Here is the rest about the latest firmware update.

     

    A new firmware 17.5.8 MR-8 is available. We strongly recommend that you upgrade the device.
    Version
    • SF 17.5 MR8 (17.5.8.539)
    News
    • Maintenance Release.
    Resolved issues
    • NC-47055 [Authentication] Support >48 characters password length for Radius Server.
    • NC-46680 [Certificates] Completing CSR with certificate breaks SSL VPN.
    • NC-48512 [Dynamic Routing (PIM)] Multicast traffic getting stopped after update of interface.
    • NC-39749 [Email] Use FQDN in Quarantine Digest.
    • NC-40831 [Email] Add capability to increase size of Mail Quarantine area in UI.
    • NC-45305 [Email] SPX related reports not being displayed on the GUI .
    • NC-48542 [Email] Potential RCE via arbitrary file creation vulnerability.
    • NC-49003 [Email] Custom ports for SMTP proxy stopped working after 17.5.
    • NC-46938 [FQDN] FQDNd doesn't update/create ipset.
    • NC-46401 [Import-Export Framework] "/conf" partition is at 100% .
    • NC-47095 [Interface Management] TSO changes are not permanent in HA.
    • NC-48031 [Interface Management] Wifi client did not get gateway and other config after reboot until enable and re-enable the wifi on client.
    • NC-48487 [IPS Engine] Postgres taking high CPU.
    • NC-48956 [IPS Engine] Modify IPS TCP Anomaly Detection setting to disabled in default setting.
    • NC-46079 [Logging Framework] Garner coredump on aux node following upgrade to 17.5 MR3.
    • NC-46780 [Logging Framework] Reports not being generated when Email Notification feature is enabled.
    • NC-46879 [Sandstorm] Add support for Sandstorm's Frankfurt data centre.
    • NC-48718 [Service Object] Unable to edit service object that is assigned to a firewall rule.
    • NC-43625 [UI Framework] Adding VLAN interface fails in IE in HA Active-Active mode.
    • NC-45371 [UI Framework] Incorrect UI behavior for Web User Activities.
    • NC-45495 [Web] Policy Tester UI and overlay issues.
    • NC-45724 [Web] Full file download retry failure after 416 (Range Not Satisfiable) being returned by proxy.
    • NC-47626 [Web] Web category "Hacking" should be classified as "Objectionable" instead "Acceptable".
    • NC-47075 [Wireless] Export of the WirelessAccessPoint does not contain the Group .
    • NC-47115 [Wireless] WirelessAccessPoint includes the wrong value for .
    • NC-47738 [Wireless] XML import is failing for wireless config failing when RADIUS Server and Pending Access Points data is present in import file
Reply
  • 0 in reply to TonV

    Mine has been good for about a month since i switched to the old dhcp method. I looked today and there is a new firmware update but the only fix it mentions closest to the problem is about wifi. 

    "NC-48031 [Interface Management] Wifi client did not get gateway and other config after reboot until enable and re-enable the wifi on client."

    Leter I will upgrade which I heard defaults back to the new method and then I will see what happens.  Here is the rest about the latest firmware update.

     

    A new firmware 17.5.8 MR-8 is available. We strongly recommend that you upgrade the device.
    Version
    • SF 17.5 MR8 (17.5.8.539)
    News
    • Maintenance Release.
    Resolved issues
    • NC-47055 [Authentication] Support >48 characters password length for Radius Server.
    • NC-46680 [Certificates] Completing CSR with certificate breaks SSL VPN.
    • NC-48512 [Dynamic Routing (PIM)] Multicast traffic getting stopped after update of interface.
    • NC-39749 [Email] Use FQDN in Quarantine Digest.
    • NC-40831 [Email] Add capability to increase size of Mail Quarantine area in UI.
    • NC-45305 [Email] SPX related reports not being displayed on the GUI .
    • NC-48542 [Email] Potential RCE via arbitrary file creation vulnerability.
    • NC-49003 [Email] Custom ports for SMTP proxy stopped working after 17.5.
    • NC-46938 [FQDN] FQDNd doesn't update/create ipset.
    • NC-46401 [Import-Export Framework] "/conf" partition is at 100% .
    • NC-47095 [Interface Management] TSO changes are not permanent in HA.
    • NC-48031 [Interface Management] Wifi client did not get gateway and other config after reboot until enable and re-enable the wifi on client.
    • NC-48487 [IPS Engine] Postgres taking high CPU.
    • NC-48956 [IPS Engine] Modify IPS TCP Anomaly Detection setting to disabled in default setting.
    • NC-46079 [Logging Framework] Garner coredump on aux node following upgrade to 17.5 MR3.
    • NC-46780 [Logging Framework] Reports not being generated when Email Notification feature is enabled.
    • NC-46879 [Sandstorm] Add support for Sandstorm's Frankfurt data centre.
    • NC-48718 [Service Object] Unable to edit service object that is assigned to a firewall rule.
    • NC-43625 [UI Framework] Adding VLAN interface fails in IE in HA Active-Active mode.
    • NC-45371 [UI Framework] Incorrect UI behavior for Web User Activities.
    • NC-45495 [Web] Policy Tester UI and overlay issues.
    • NC-45724 [Web] Full file download retry failure after 416 (Range Not Satisfiable) being returned by proxy.
    • NC-47626 [Web] Web category "Hacking" should be classified as "Objectionable" instead "Acceptable".
    • NC-47075 [Wireless] Export of the WirelessAccessPoint does not contain the Group .
    • NC-47115 [Wireless] WirelessAccessPoint includes the wrong value for .
    • NC-47738 [Wireless] XML import is failing for wireless config failing when RADIUS Server and Pending Access Points data is present in import file
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