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Can't get IP from Xfinity on WAN.

Scheduled Pinned Locked Moved DHCP and DNS
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  • J
    jvwjgames
    last edited by Mar 9, 2022, 7:20 AM

    I had two Power outages this weekend. When modem reboots and PFSense asks for an IP Xfinity doesn't DHCPOFFER a new one for quite a long time. Yes I have rebooted the modem loads of times. I even shutdown my whole network. Then rebooted everything starting at the Xfinity modem first then working downstream. I have also tried unplugging the WAN Ethernet cable for a bit on the PFSense side. Even did a release (relinquish lease) and renew as well to no avail.

    J 1 Reply Last reply Mar 9, 2022, 2:01 PM Reply Quote 0
    • J
      JKnott @jvwjgames
      last edited by Mar 9, 2022, 2:01 PM

      @jvwjgames

      Try putting another computer in place of pfsense to see if it gets an address. If it doesn't, then there's a problem from Xfinity. If there were power outages, there might be some damage to their network.

      With cable TV, there are nodes and line extenders that are AC powered. The AC from the utility goes to the nodes in your area, converted to DC and back to AC for distribution over the network to power the various pieces of equipment.

      PfSense running on Qotom mini PC
      i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
      UniFi AC-Lite access point

      I haven't lost my mind. It's around here...somewhere...

      J 1 Reply Last reply Mar 10, 2022, 12:27 AM Reply Quote 0
      • J
        jvwjgames @JKnott
        last edited by Mar 10, 2022, 12:27 AM

        @jknott what's weird is when I take it out of bridge mode. The internet works just fine. But when I put it into bridge mode. The internet fails and I cannot get a DHCP IP for a very very long time. I've even tried forcing the port to be negotiated at 1 gig cuz I've heard that can cause issues still nothing. I really want bridge mode to work.

        J 1 Reply Last reply Mar 10, 2022, 2:12 AM Reply Quote 0
        • J
          JKnott @jvwjgames
          last edited by Mar 10, 2022, 2:12 AM

          @jvwjgames

          Try with another computer, to see where the problem is.

          PfSense running on Qotom mini PC
          i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
          UniFi AC-Lite access point

          I haven't lost my mind. It's around here...somewhere...

          J 1 Reply Last reply Mar 11, 2022, 4:12 AM Reply Quote 0
          • J
            jvwjgames @JKnott
            last edited by jvwjgames Mar 11, 2022, 4:13 AM Mar 11, 2022, 4:12 AM

            @jknott I put modem back in bridge mode and my laptop directly connected to modem get a WAN IP from Xfinity. But PFsense doesn't I take it out of bridge mode PFsense gets IP 10.0.0.146 but Bridge mode can't get external IP.

            J 1 Reply Last reply Mar 11, 2022, 1:34 PM Reply Quote 0
            • J
              JKnott @jvwjgames
              last edited by Mar 11, 2022, 1:34 PM

              @jvwjgames

              Do a packet capture.

              Shut down pfsense
              Disconnect the WAN cable
              Restart pfsense
              Run Packet Capture, filtering on DHCP
              Reconnect the WAN cable
              Let Packet Capture run for a couple of minutes and post the capture file here.

              PfSense running on Qotom mini PC
              i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
              UniFi AC-Lite access point

              I haven't lost my mind. It's around here...somewhere...

              1 Reply Last reply Reply Quote 0
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