Ive been using this router for 3 or 4 months with everything working fine, but a few days ago it started giving me problems. i lose my ethernet connection to my windows 10 computer. It says ip address is invalid. i can still use wifi on other computers although yesterday even that went out too. i have a intel i7 processor with 32 gb of ram running windows 10. the orbi mesh system is the RBR50v2. i have the xfinity modem plugged into the yellow port that says internet.the windows computer is plugged into another ethernet port on the router. i thought i had fied this yesterday by reconfiguring the router with the orbi app. it was working fine but now no ethernet connection.

Since your problem is specific to your Windows PC and its hardwired ethernet connection, first try all the standard Windows adapter diagnostics. Exactly what error message and which step fails when you follow these instructions? https://www.makeuseof.com/windows-10-fix-faulty-ethernet/

What xfinity modem is it connected to? What firmware version are you on?

The xfinity modem is CGM4140COM. Here is what i found on xfinity website. Model Numbers: TG3482G and CGM4140COMFriendly Model Name: XB6Gigabit Ethernet Ports: 2Dual-Band WiFi Option: Yes2.4 GHz Connected Client Limit: 305 GHz Connected Client Limit: 75Maximum Data Throughput: 1 GbpsWPS (WiFi Protected Setup): YesGateway/ Network Management Tool (http://10.0.0.1): YesXfinity xFi Eligible: YesXfinity xFi Advanced Security: YesXfinity app Activation: YesTwo Total Telephone Ports: YesBattery Backup Capability (Xfinity Voice Only): YesLink Cordless Phones (CAT-iq 2.0*): YesHome Hotspot Capable: YesCompatible with Xfinity Home Pro Protection: YesCompatible with Xfinity Home Self Protection: YesThe download speed was 106mbps and the upload speed was 23.2 mbps using wifi. I'm not sure how to see the firmware. i googled it and it said to put in username & password. Im not a network administrator or anything but that doesnt sound very secure. is there a better way to see this? i'm using the netgear router so xfinity turned on briging i think its called?

i also have a 8 port netgear GS308E Smart managed Plus switch.

Your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAThttps://kb.netgear.com/30187/How-to-fix-issues-with-Double-NATCouple of options,1. Configure the modem for transparent bridge or modem only mode. Then use the Orbi router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the Orbi router gets from the modem. Then you can use the Orbi router in Router mode.3. Or disable all wifi radios on the modem and connect the Orbi router to the modem, configure AP mode on the Orbi router. https://kb.netgear.com/31218/How-do-I-configure-my-Orbi-router-to-act-as-an-access-point and https://www.youtube.com/watch?v=H7LOcJ8GdDo&app=desktop

ORBI RBR 50 V2 Loses Ethernet connection

25 Replies

plemans
Guru - Experienced User
Mar 05, 2022
What xfinity modem is it connected to?

What firmware version are you on?
- Sovby
  Aspirant
  Mar 05, 2022
  The xfinity modem is CGM4140COM. Here is what i found on xfinity website.
  
  Model Numbers: TG3482G and CGM4140COM
  Friendly Model Name: XB6
  Gigabit Ethernet Ports: 2
  Dual-Band WiFi Option: Yes
  2.4 GHz Connected Client Limit: 30
  5 GHz Connected Client Limit: 75
  Maximum Data Throughput: 1 Gbps
  WPS (WiFi Protected Setup): Yes
  Gateway/ Network Management Tool (http://10.0.0.1): Yes
  Xfinity xFi Eligible: Yes
  Xfinity xFi Advanced Security: Yes
  Xfinity app Activation: Yes
  Two Total Telephone Ports: Yes
  Battery Backup Capability (Xfinity Voice Only): Yes
  Link Cordless Phones (CAT-iq 2.0*): YesHome Hotspot Capable: Yes
  Compatible with Xfinity Home Pro Protection: Yes
  Compatible with Xfinity Home Self Protection: Yes
  The download speed was 106mbps and the upload speed was 23.2 mbps using wifi. I'm not sure how to see the firmware. i googled it and it said to put in username & password. Im not a network administrator or anything but that doesnt sound very secure. is there a better way to see this? i'm using the netgear router so xfinity turned on briging i think its called?
  - Sovby
    Aspirant
    Mar 05, 2022
    i also have a 8 port netgear GS308E Smart managed Plus switch.

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ORBI RBR 50 V2 Loses Ethernet connection