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networking - ISP modem/router, how do I enable Bridged Mode and use my own router?

I have an Arris TG1672G supplied by my ISP. I have called and asked if I can use my own modem (a Surfboard for example) and they told me I can't use my own device. Apparently we aren't renting it, we purchased it and they only allow their own approved devices.


So I'm stuck with the wifi router/modem. I want to use Bridged Mode to simply pass the data directly to my other router, which has more ports that I desperately need, and let it handle all my networking needs. What do I do? I've tried this and failed multiple times.


As far as I can remember, these are the steps I need to take on the Arris device:




  • Set to Bridged Mode


    Picture of bridge mode settings




  • Disable DHCP on LAN settings


    Picture of LAN settings to disable DHCP




  • Disable DHCP on WAN settings


    Picture of WAN settings to disable DHCP




  • Disable Firewall


    Picture to disable firewall




Next steps on the router include (Ubiquiti Edgerouter):



  • Connect modem to router, router to PC/Laptop


  • Set network adapter IPv4 properties as follows;


    static IP -> 192.168.1.2  
    subnet mask -> 255.255.255.0  
    default gateway -> 192.168.1.1  
    preferred DNS -> 192.168.1.1  
    alt DNS -> 8.8.8.8


  • Connect to router via 192.168.1.1 (modem is 192.168.0.1)



  • Log in with default credentials

  • Enable DHCP, firewall, etc

  • Reset PC's network properties to automatically obtain IP/DNS

  • Plug in my devices

  • Profit??


Am I missing anything?


Last time I tried I got no connection from my modem.. I factory reset all devices. Was I supposed to disable DHCP server under LAN, WAN settings or both? (I included pics of both)


Also when my power or ISP is down for long periods of time, the Arris modem resets to default settings, I see the wifi radios back on and login/password reset to defaults.


Does this mean this is all a waste of time if my power/internet is going to go out again (which it will)?

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