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Forum Discussion
charleyp1
Sep 22, 2020Star
Orbi RBR20 issues with Arris TG1682G Modem/Router for Xfinity.
Alright, yet another XFiniti issue post! Like many, I am having issues getting my mother's RBR20 to connect to the internet with the Xfinity Arris TG1682G Modem/Router.
I have enabled Bridge mode on the modem/router. When I go back in and check the wifi settings, they show disabled.
Next, I setup the Orbi and add the Arris modem/router MAC address. When I do that, Orbi shows the IP information from Comcast. When I remove it, it does not. However, in either state, it cannot connect to the internet and has a magenta light on it. It is cabled properly. I have searched through the Arris config to see if I could find any other methods to disable the wifi transmitters, but enabling bridge mode seems to be the only way.
What I do not understand is why Orbi cannot connect to the internet even though it has the Comcast IP info showing in the DHCP listing. That makes no sense to me. Thanks in advance, everyone.
Please make sure of the following
1. The Orbi "Internet/Yellow Port" is connected by ethernet cable to Arris TG1682G.
2. No other devices are connected to Arris TG1682G ethernet ports.
3. Arris TG1682G is in bridge Mode.
4. The Orbi is in router mode and setup to obtain WAN DHCP automatically.
5. Power off both devices. Power on Arris TG1682G first and wait until LEDs show active and Internet. The power on the Orbi.
Comcast/Xfinity like most ISPs only assigns an account 2 public IP addresses and only one can be assigned to a device connected to the ethernet ports. So if you have multiple devices connected to the Arris TG1682G they may be racing for that 1 public IP address.
9 Replies
- GMoGoody8Luminary
Please make sure of the following
1. The Orbi "Internet/Yellow Port" is connected by ethernet cable to Arris TG1682G.
2. No other devices are connected to Arris TG1682G ethernet ports.
3. Arris TG1682G is in bridge Mode.
4. The Orbi is in router mode and setup to obtain WAN DHCP automatically.
5. Power off both devices. Power on Arris TG1682G first and wait until LEDs show active and Internet. The power on the Orbi.
Comcast/Xfinity like most ISPs only assigns an account 2 public IP addresses and only one can be assigned to a device connected to the ethernet ports. So if you have multiple devices connected to the Arris TG1682G they may be racing for that 1 public IP address.Okay, thanks for the advice.
1. Check!
2. I do have things plugged in there so maybe that's the issue.
3. Check!
4. Check!
5. WIll make sure I come up in that order.Thanks again.
- So this ended up doing the trick for me. I followed these steps after resetting the Orbi to factory default. I then followed the setup using the app, NOT from a PC. I definitely think the issue was having other devices connected to the Arris modem/router.
Thanks for the assistance folks!
- MstrbigMaster
charleyp1 wrote:
Next, I setup the Orbi and add the Arris modem/router MAC address. When I do that, Orbi shows the IP information from Comcast. When I remove it, it does not. However, in either state, it cannot connect to the internet and has a magenta light on it. It is cabled properly.Why are you setting up the Orbi and adding the Arris MAC address? Once you disable DHCP and setup the Arris in bridge mode, you should be able to use the app (still think it's the easiest and fastest way for an initial setup) and configure the Orbi router in router mode, and add satellites if needed. Once configured you can go to orbilogin.com and finish configuring the Orbi the way you want.
On one the various threads on this subject, I read someone suggested that. When I do not add it, I do not have an IP address from Comcast. When I do, I get an IP address pushed down to the Orbi (though I still cannot access the internet).
- MstrbigMaster
charleyp1 wrote:On one the various threads on this subject, I read someone suggested that. When I do not add it, I do not have an IP address from Comcast. When I do, I get an IP address pushed down to the Orbi (though I still cannot access the internet).
Go back and check your Arris settings. The modem needs to be active and the LAN portion technically disabled. Make sure, after changing settings on the Arris, and before connecting the Orbi, you reboot the Arris. This way the Arris will obtain the info from the ISP and assign an IP address to the Orbi router.