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    WAN gateway doesn't come up after a power loss to the cable modem - I need to manually release and then renew DHCP lease

    DHCP and DNS
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    • A
      alainf
      last edited by

      Hello!

      First of all, sorry if this is the wrong sub-forum. So far I think I have drilled down my troubleshooting to say that my issue is somehow DHCP client related.

      I am running pfsense 2.7.2-RELEASE (amd64). The WAN port (interface igc0) is connected to a Technicolor cable modem (in bridge mode). When I cut the power to the cable modem, and then restore power, the WAN gateway doesn't come back up:

      e7bdffa3-498c-4c6c-a764-ce3707e1d72a-image.png

      In my logs I see:

      a5102e93-18a7-4b65-a47d-0be94e66e165-image.png

      When I manually release and then renew the WAN interface's DHCP lease, the gateway comes up.

      I am at loss on where to look for configuration errors, or tweaks that I would need to make to my configuration.

      All help is very welcome!

      Alain

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      • keyserK
        keyser Rebel Alliance @alainf
        last edited by

        @alainf That's not the correct part of the log you are showing. If your Modem looses power pfSense should see a link-down event on it's WAN, and a proper link down should have pfSense attempt to renew its DHCP - and if not try to aqquire a new DHCP lease.

        But if there is no link-down event involved - then you are in similar trouble to many others because pfSense offers no automation to actually release/renew WAN DHCP addresses.
        See this tread:

        https://forum.netgate.com/topic/186492/isp-comcast-wans-failing-on-dhcp-lease-modifications/3?_=1710174622391

        Love the no fuss of using the official appliances :-)

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