I am looking to switch to AT&T fiber. I currently have xfinity internet for which I use my orbi system. AT&T representative said there would be no benefit to using the orbi with their fiber. Is that correct? If not, how should I best connect the orbi to AT&T fiber?

Putting my Orbi in AP (Access Point) mode and turning off the WIFI on the Arris worked a charm. No more problems.

Orbi w/ AT&T Fiber | NETGEAR Communities

60 Replies

waynealight
Apprentice
Jul 25, 2018
the benifits of using orbi is for coverage and features. att router doesn't support upnp. you will be able to create a pass through for the orbi using dmz plus. This will allow the orbi to have a wan address and not just a lan address from the att router. if att pushes an update to the router it will reset this feature and you will have to reenable it. only happens a few times a year. if you dont do this you will create a double nat situation and have issues connecting to some devices using upnp.
FURRYe38
Guru - Experienced User
Jul 25, 2018
Modem Combo Units:
Couple of options,
1. Configure the modem for transparent bridge mode. Then use the Orbi router in router mode.
2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ for the IP address the Orbi router gets from the modem. Then you can use the Orbi router in Router mode. DMZ helps wtih double NAT conditions in this case.
3. Or disable all wifi radios on the modem and connect the Orbi router to the modem, LAN to LAN and configure AP mode on the Orbi router.

Orbi Wifi would be far superior to anything that ATT has on there modem/ONTs.
- mpf541
  Apprentice
  Jul 25, 2018
  I have att fiber and orbi. It works great but nyou need to get the right gateway. You do not want to use DMZ with this. What you want is IP passthrough. Set it up with this and the orbi works great.
  
  Make sure yo tell thgem this is what you want. Specify a gateway with IP Passthrough. You can request it and they will ship one.
  
  They do have more bthan one model but this arris i have is the latest. At least when i got it the beginning of them year.
  
  My att gateway is
  
  Manufacturer ARRIS
  
  Model Number
  BGW210-700
  - bvg820
    Aspirant
    Nov 27, 2018
    I have the same setup. Will you be so kind as to let me know what you did to accomplish this?
    
    Thanks!
FURRYe38
Guru - Experienced User
Jul 26, 2018
DMZ can be used if IP Pasthrough is not an option or can't be configured on his ONT.
- mpf541
  Apprentice
  Jul 26, 2018
  As someone who uses this service. I had issues with the orbi working properly on DMZ problem solved by just getting the correct gateway to start with. ATT will provide it if youy ask for it.
  - stevegon
    Tutor
    Sep 14, 2018
    
    mpf541 What is the "correct gateway to start with. ATT will provide it if youy ask for it. "
    
    I just spent 3 hours on the phone with AT&T and they said I could use a "secondary router"...which I don't want to do. I want a single ethernet WAN cable with an internet address (doesn't have to be static) and no WiFi or router from ATT, period. Nothing, just a single Ethernet port. Any help is much appreciated.
FURRYe38
Guru - Experienced User
Jul 26, 2018
Hopefully either way will work for them. :smileywink:

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Orbi w/ AT&T Fiber