Switched to AT&T Fiber, and my Samsung Smart TV can't connect to my network.
I recently switched from a local ISP to AT&T Fiber and am using AT&T’s standard default router/gateway and can no longer connect to the Internet. I had no issues with the old ISP, so I'm posting this under the AT&T Fiber Equipment forum.
At first, my Samsung 4K TV (model MU6290) worked fine. I set up a Wireless connection on my new network and experienced no problems. Then, I turned on the TV the next day, and it wouldn’t connect to the Internet.
I have scoured the Internet for hours trying to fix this and am at a dead end.
I have tried:
- Manually setting up my DNS as 184.108.40.206 and 220.127.116.11
- Connecting the TV via Ethernet directly to my router. It instantly says it cannot connect to the Internet.
- Resetting my Factory Network Settings on my TV and setting the network up from scratch.
- When I do this, I can see all local Wi-Fi networks - including my own - but cannot connect to the network.
- When I tell it to automatically find the IP and DNS servers, it works for a few minutes, automatically provisions a MAC Address, and then gives 0.0.0.0 for all other fields (IP Address, Subnet Mask, Gateway, and DNS Server).
- Unplugging and replugging my TV’s power cable. This will sometimes fix the problem until I turn the TV off and it disconnects from the network, at which point it can no longer connect to the Internet.
- Manually provisioning a MAC address for my TV on my network.
- Manually provisioning an IP address for my TV on my network.
- Disconnecting my Chromecast from the TV and turning it off the network.
- On the few and random instances when the TV has successfully connected to the network, I took a photo of the Network Settings it connected to the network. I then provisioned IP and MAC Addresses for these values on my U-verse network and manually set up my TV’s network connection via these values. It worked once, and then stopped connecting.
On the few and random instances when the TV has successfully connected to the network, I took a photo of the Network Settings it connected to the network. I then provisioned IP and MAC Addresses for these values on my U-verse network and manually set up my TV’s network connection via these values. It worked once, and then stopped connecting.
I can occasionally get the TV onto the network by unplugging/replugging the power cable and doing a Factory Network Reset. It does not work consistently.
Most puzzling to me is the fact that the TV does not connect via Ethernet when plugged directly into the router. I know the Ethernet cable works – I have plugged it directly into a Windows machine and Mac OSX machine and experienced zero issues with it.