I put my Netgear C3000 into "modem only" mode. Can it support multiple devices connected to it via ethernet cables? If so, how?
As a bit of background, I am an amateur musician, and I want to use a piece of software called "Jammulus" to rehearse with other musicians online. To prevent any lag, I need to connect my laptop to my modem directly via ethernet. I have a 2017 Mac Airbook, and so I am also using a Ugreen ethernet adapter to connect my computer via ethernet cable.
A few months ago I had serious problems with the wireless provided by my modem/router Netgear C3000. In short, our upload and download speeds were about 1/10th what Comcast/Xfinity promised. So I switched the device into "modem only" mode and purchased a Deco router that is now hooked up to the Netgear modem. That fixed the speed problems. Unfortunately, when I now try to hook my laptop up to my modem using an ethernet cable, the messages in my network settings tab seem to suggest that my laptop is not being assigned an IP address by the modem. A number of forums I've read suggest that, when modem/routers are placed in "modem only" mode, they will assign IP addresses to only the first device to which they connect (here, I'm guessing the Decod router). So I'm not getting an internet connection via the ethernet cable.
Is there any way to fix this issue that does not require that I buy a new modem? Thanks for any help you might offer.
