Does Firewalla limit download speeds?

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12 comments

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    Firewalla

    Don, we are limited to around 100Mb.  If you do have high bandwidth devices, we advise not to monitor that particular device.

  • Avatar
    Don Price

    I understand about not monitoring, but will that limitation slow down just web browsing on a laptop if my ISP delivers close to 500MB download speeds?

  • Avatar
    Firewalla

    Let me answer this way, 

     

    1. If the website you are visiting is capable of delivering 500 Mbits to you, then you will be limited to 100mbits by Firewalla.  But remember most/if not all sites (other than speed test sites) do not do anything close to 100mbits.  Example, netflix 4k video is only < 25mbits

    2. If all the devices in your home are active, say people watching 10 4k videos at the same time, then you will be limited to 4.

    The limitation here is the CPU on the firewalla device.   To go to 500 megabits capability, it will be a lot more expensive. 

    To get around the limit is to do following:

    1. put the device that consuming more bandwidth in unmonitored mode.

    2. I would also look and see if you are using all the 500Mbits, see this article

    https://help.firewalla.com/hc/en-us/articles/115004899853

     

  • Avatar
    Tony Le

    Hi - just installed my Firewalla and so far the interface looks great, easy to install but I have a few issues that keep coming up in the first hours it’s on:
    - download speed. Speed tests prior to plugging it in gave me around 40mbits. Since turning it on, I can’t get above 5-6mbits.
    - every 15 minutes or so the internet seems to completely stop working and the router seems to be unresponsive (I try to login via the netgear genie app and it won’t connect until about 5mkn later).
    - and my Disney circle family management (came with router internally) and Firewalla randomly day “is offline” and that will randomly come back online

    Right now my configuration is:
    - own netgear cm400 cable modem (upgrading to cm700 soon as my bandwidth is higher than I’m getting) through Comcast xfinity
    - netgear nighthawk R7000 router
    - Comcast cable internet
    - iPhoneX running iOS 11.2.1
    - live in San Francisco on a home network

    Not sure what other information you need. I have a lot of devices (computers, TiVo, mobile, hue lights) = ~25 devices in all. But I don’t think any of them are interfering.

    Only thing on with Firewalla is monitoring in simple mode. I don’t have any other feature turned on.

    Is this the Firewalla causing these issues?

    Thanks!
    Tony

  • Avatar
    Firewalla

    Tony

    It is very likely that Circle and Firewalla are competing to monitor the network.   Meaning, they try to grab packets from each other.   This is the case of where in networking, we try to put devices in-line, and in your case, they are in parallel.   Is it possible to disable circle and give it a try?  

  • Avatar
    Tony Le

    Great! Makes sense and not sure why I didn’t think of it. I disabled family circle on the router and it doesn’t seem to make the router quit or become non responsive anymore. I’m still get slow speeds (5.8mbits) but I’m wondering lately if it’s my ages cable modem and Comcast being one of the worst providers ever. Appreciate your help!

  • Avatar
    Jim George

    Even if I turn off monitoring for the device, it still slows down my speeds.  Turning off monitoring does not release the IP from the Firewalla subnet.  The fact that the device still has a Firewalla IP instead of an IP from my main router means traffic is still flowing through the Firewall device, hence slowing down my speeds.

    I have my main PC which I manually defined an IP from my main router.  I get 250Mbps+ on that device.  My other PC, which has a Firewalla IP, only get 51Mbps.

    Is there a way to exclude the device from being assigned an IP from Firewalla when monitoring is turned off?  That would be much simpler than assigning a static IP to every device you turn monitoring off for.

  • Avatar
    Firewalla

    Jim

    A new feature will be in beta soon that will take care your issue.  Assuming you are running DHCP mode.  

    Firewalla (Red) is limited to 100mbit.  For your testing, are you using an external host?   

  • Avatar
    Heard County IT Department

    Does Firewalla cause bufferbloat? Will the updated version reduce the effect of this? I've been testing out Firewalla and have lost half my download because my internet is 100mbps but, it seems like the Firewalla is causing significant latency as well. Is this a limitation of the hardware? 

    My internet should be 200 by 11 and you can see the bufferbloat with the Firewalla maxes out.

     

  • Avatar
    Firewalla

    Likely something the ISP is doing or dsl reports code.  For example, below is my home internet, which is Comcast.  This is done without Firewalla in between.  You can see the bufferbloat ...   

    Go to monitor button, and disable monitoring, then do the same test.  

  • Avatar
    Heard County IT Department

    I have the quality of service turned on and I'm giving up some of my internet speed to reduce bufferbloat. Here is a test was done with the Firewalla unplugged. I've changed no settings in my router between tests. The worst the Blufferboat went up without Firewalla was +40ms.

    Without Firewalla:

    With Firewalla: 

  • Avatar
    Firewalla

    What router are you using?

    Firewalla internally do not buffer beyond the interface transmit and receive buffers, those are only 2ms or less.   In above case it is likely the ISP is doing smart queueing because you have saturated the allowed bandwidth.  The bottom one is  firewalla doing the rate limit.   This is likely the reason of the difference.  In theory the difference shouldn't be that big.  A more scientific way is to run the test multiple times and take the average.  And unfortunately, all of my tests without Firewalla is trying to make me buy a different router

     

    This is the same test with firewalla.  (Ad blocker ... blocked the router ad)

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