I am using an AT&T branded Nighthawk MR1100. It recently updated firmware to 12.05.05.12. Since this update I am not able to connect to the ehternet port with any devices. I was using it with a Linksys Velop node and was working fine until the update. I was also able to connect my laptop to ethernet but am not able to currently. The device was working correctly prior to the firmware update. Can anyonne provide assistance.

We are actively working on this issue. Sorry for the inconvenience and thanks for your patience. Regards

Could you please advise when the issue happens on ethernet port, do you still can connect to WiFi and browse the internet? Thanks

Yes i am still able to connect to WIFI and browse. Once connected to ethernet there is no internet available through the port.

Did you also connect your MR1100 to your computer using USB cable at the same time you were using ethernet port?

No I didn't. For my purposes I need the Ethernet port to work correctly not the USB. I haven't tried using it.

AT&T MR1100 Ethernet Port inop | NETGEAR Communities

JohnPeng
NETGEAR Expert
Jan 16, 2020
We are actively working on this issue.

Sorry for the inconvenience and thanks for your patience.

Regards
- JohnPeng
  NETGEAR Expert
  Jan 16, 2020
  Could you please advise when the issue happens on ethernet port, do you still can connect to WiFi and browse the internet?
  
  Thanks
  - cmyorke1
    Aspirant
    Jan 16, 2020
    Yes i am still able to connect to WIFI and browse. Once connected to ethernet there is no internet available through the port.
Scottjohnsonatt
Aspirant
Apr 02, 2020
I just recently sold 2 Nighthawk AT&T LTE mobile hotspot routers in the ethernet is still not working is there a firmware update for this?
Cburdine4
Aspirant
Sep 17, 2020
I’m having this issue. Did yours ever get resolved?
- lukelu
  Aspirant
  Sep 23, 2020
  Got the same issue (We are using ATT bussiness plan). Wifi works but ethernet doesn't.
  - ar_james
    Aspirant
    Oct 20, 2020
    Same 'No Ethernet' issue on my MR1100 M1 router. I have a trouble ticket open. I have the latest ATT provided firmware 12.05.05.14. I saw some threads where this version should have corrected the issue. My ethernet port is broken. The wifi and the USB port will still connect. I have a USB 3.0 to Ethernet adapter that came with my laptop plugged into the usb. That works for now, but I think there is a speed decrease from what ethernet would be.