Intermittent packet loss to WAN - seems random

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    mobius strip

    Assuming you've tried restarting the FW Gold between customizations changes, and there might be a better approach, but I really think to get a definitive diagnosis your options seem to me that either:

    A) you might need to keep going and try your approach with 1pc + Firewalla Gold + Tplink in AP mode first without the VPN running, and then set docker to not auto start on reboot if you have it set to do so and properly reboot the FW Gold once more to see.

    or

    B) file a support request and give Firewalla team access to your FW Gold as described in the help section so they can look at what's going on and try to see for themselves if they can spot the problem (including doing possible hardware diagnostics?) short of stopping docker service and reboot with it running.

     

    Sounds pretty aggravating though, for sure. Please let us know what happens!

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    MarkW

    Thanks. Fortunately, Firewalla support was great and helped me isolate the problem. For some reason the FWG and my cable modem weren’t negotiating a link properly. I put a dumb switch between them which forced/tricked them both into properly negotiating 1gig full duplex. Everything is working fine now. I’m going to try to replace the cable modem and eliminate the dumb switch, but I’m just glad it’s working now.

    Thanks

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    ColoRock

    Did you find a solution besides the unmanaged switch in between? I believe I’m having the same issue, but the unmanaged switch trick didn’t work for me.

    My connection goes down at approximately 20 min intervals, about 30 seconds each outage. Was your experience the same? Thanks!

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    philipp.gerard

    It seems I had the same problem here. Putting a simple switch between my AVM FritBox 6660 (running as a cable modem + router, because bridge mode does not work well) and my Firewalla Gold has solved my constant problems with seemingly random packet losses.

    Firewalla team, could you elaborate what the reason for this is? The modem is state of the art here in Germany and it's not a simple process to replace modems from network providers (even though I own this one).

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    ColoRock

    I don’t think my issue is identical, but similar. I tried an unmanaged switch as well as a managed switch between my modem (actually a fiber optic ONT) and FWG. Neither solved the issue, even when setting port speeds manually on the managed switch (my ISP also tried manual port speed settings on the ONT to match). I put an old, simple router between instead of a switch, and the intermittent loss stopped. It seems that FWG and my modem have an incompatibility when directly connected to each other whether in DHCP mode or static IP. If a different router handles the DHCP connection to the ISP, it’s fine. So, I’m double NAT right now, but not any major drawbacks to that for me currently.

    This started for me minutes after the FWG fall 2021 release. I see new software was pushed out December 2021. I’ll see what happens if I remove the second router later today.

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    T Kunau

    I have this problem as well. The intermediate switch suggestion did not work for me. My FWG appeared to work as expected for months, until this month.

    This is what I see in GoogleMeet diagnostic tools:

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    ColoRock

    The graph looks like poor latency, but may not be a complete internet outage. Does FWG log an internet outage? At what frequency does this occur? How long does the issue occur each time? What brand/model device is issued by your ISP?

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    Firewalla

    see https://help.firewalla.com/hc/en-us/articles/4413511352083-Network-Performance-and-Quality-Monitoring

    If nothing detected, then reboot your WiFi / Switch

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    T Kunau

    A spike of poor latency and then back to normal. Not enough of an outage to drop the call, but enough to disrupt.

    It happens every 5-10 minutes. Duration is just a spike in latency.

    My local metro ISP drops a fiber link into my home and it terminates at a device labeled:

    CTC Union
    GSW-1005MS
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    ColoRock

    I’m on fiber too. Calix GigaPoint 803g is my ISP device. I see total packet loss every 20-30 min for 20-30 seconds when my FWG is connected directly to the ISP device. I’m still double NAT with a TP-Link ER605 to “solve” my issue for now. Do you have another router you could use for a day while tracking latency to see if it’s truly the FWG? I found the iPhone app “Pingify” helpful when I was troubleshooting this stuff.

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    T Kunau

    I have the old Linksys firewall device but flashed it with DD-WRT for experimenting, it is not as it was so A/B testing isn't possible without considerable work/time to configure.

     

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