Orbi creating two different IP Ranges?

plemans
Guru - Experienced User
Dec 31, 2019
PMWICON wrote:
I have an AT&T moden/wifi router combo. All WIFI capabilities are disabled on the router. I spoke with AT&T for about an hour this morning and we did a bunch of torubleshooting, but the only IP's they see being set on their side are the 192.168.0.x ranges.
Disabling wifi doesn't disabling its routing function. You'll still have 2 devices handing out IP addresses on your network.
https://kb.netgear.com/30186/What-is-Double-NAT

https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
- PMWICON
  Tutor
  Dec 31, 2019
  I will take a look at this. Thank you for taking the time to help me out!
  - plemans
    Guru - Experienced User
    Dec 31, 2019
    No worries.
    Att devices aren't known to be simple/capable to setup in passthrough/modem only mode. many have to put their orbi's in AP mode to get the functing properly. Not sure why Att is so possessive of keeping their routing function active.
- PMWICON
  Tutor
  Dec 31, 2019
  In looking at the instructions noted for fixing the NATing issue.... The suggestion was to put the AT&T device into Bridge mode. As I look at the instructions for how to do this with my particular modem it seems I am already in Bridge mode. In my routers case it is setting the firewall function as "Passthrough".
  
  Not sure this is the issue as it seems my AT&T device has already been set in Bridge mode and the wifi has been disabled.
  - plemans
    Guru - Experienced User
    Dec 31, 2019
    Att devices are notorious for passthrough dmz not working correctly.
    Again, many times the easiest router to get everything working properly is leave the att device in routing mode, disable its wifi, and place the orbi in AP mode.
    Its not hard to do and if it fixes your issue, then its the att combo device causing issues.

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Orbi creating two different IP Ranges?