Cannot get the internet when using Firewalla Purple

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Scott Endrizzi

• June 30, 2025 03:59

Comcast xfinity.  Use cable modem Netgear CM1100. 

Trying to use the setup: CM1100 modem --> Firewalla Purple --> Netgear R7000.

Have tried using the Firewalla in both router and bridge mode. With the R7000 in the alternate state (router if firewalla is bridge and bridge if firewalla is router).

Either way I do it the internet will never work.  I have my wifi signal going without any internet.  The light for the incoming internet signal on my Netgear R7000 is always amber (problem) whenever I run it through the firewalla.  I remove the firewalla and it works just fine (how I've had it for years). 

What am I doing wrong?    

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  Scott Endrizzi

  • June 30, 2025 12:09
  • Edited

  Oh I did read the note: "Please do not connect firewalla wan to your isp modem"  Not sure if that's the issue. since that is essentially how I have it setup.  Not sure how to avoid that

  Edit:  To clarify.  When I use my CM1100(modem) --> R7000 (router mode) it works fine with wifi internet.

  When I use my purple firewalla between the two:  CM1100(modem) --> WAN port on Purple(router mode) --> LAN of purple to R7000 internet input(gateway mode) the incoming internet light (from LAN purple) shows a problem and it will broadcast both my wifi signals at 2.4 and 5Gz but with no internet.  I have also tried this with my R7000 in AP mode with the same result.

  Also tried my purple firewalla between the two:  CM1100(modem) --> WAN port on Purple(GATEWAY mode) --> LAN of purple to R7000 internet input(ROUTER mode) the incoming internet light (from LAN purple) shows a problem and it will broadcast both my wifi signals at 2.4 and 5Gz but with no internet.

  For some reason the purple seems to not be allowing the R7000 to get the internet signal. 

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  Firewalla

  • June 30, 2025 17:02

  Your topology: 

  CM1100 modem --> Firewalla Purple (router mode) --> Netgear R7000.

  Should be the right one. The only thing you need to make sure is, reboot the CM1100 when swapping in the purple, and make sure nothing else is connecting to the CM1100.

  If above doesn't work, check with your ISP, and make sure they are not MAC locking.

  To verify the MAC locking part, do this

  CM1100 modem -->  Netgear R7000 (router mode) -> Firewalla Purple (router mode) 

  See if you can access the purple, if not, the purple is not working

   

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