Help & troubleshooting for network issues, including connecting your device to your home Wi-Fi network, connecting to public networks, troubleshooting wireless issues & ethernet connections, and optimizing streaming performance.
Okay, that's interesting. Many times, the modem will identify itself with a particular device, most commonly a router or switch (most routers are also switches). If your ISP does this, then you can't switch out devices easily. A switch or wireless router connected to a modem prevents this problem.
Now, this may not be what's going on. Can you connect a different device to your Ethernet cable that's running from your modem? Say, a laptop?
If a different device can be used without issue, then this is not what's going on. However, if no other device can connect properly using the Ethernet cable from the modem, then this may be the issue. If so, you'll need to work with your ISP about this. And, if this is the issue, I'd suggest getting an inexpensive switch (around $20), or an inexpensive wireless router (with switch, around $35).
DBDukes Roku Community Streaming Expert Note: I am not a Roku employee.
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I am having the same problem with Roku Express 4K+. It amazes me that you all about the more expensive product and it still doesn't work. I am disgusted by the copy pasta Dannybot. I was so pleased when I found that Roku tested adapters and approved them to allow their device to be plugged into an Ethernet. I am disappointed and disgusted by their refusal to deal with this flaw in their product.
They should not sell a product if they are not willing to support it. Obviously