mptfan wrote:the modem is installed in my living room and connected to a WIFI router and most of my devices connect to the internet using the WIFI wireless router. So far so good, no issues. Here is my question...
I want to connect a computer in another room (a spare bedroom/office) using a wired connection with an ethernet cable connected directly to a cable modem and not using WIFI. There is a cable connection that runs to the bedroom/office from a splitter that splits off of the main cable where it comes in to the house, there are several cables that come from the splitter and go to several rooms, one of which is connected to the living room where the existing cable modem is connected, and another is connected to the bedroom/office where I want to set up my computer.
Here's a possible solution that uses only your current modem.
First, if the modem has only one ethernet port, get a small ethernet switch. Move the modem and the WiFi adapter to the bedroom/office. Connect the computer and the WiFi adapter to the modem, via the switch if necessary.
Next, if the WiFi doesn't reach the rest of the house from the bedroom/office, get a pair of powerline network adapters. In the bedroom/office, replace the WiFi adapter with one powerline adapter. Put the other powerline adapter in the living room and connect the WiFi adapter to it.
I have a similar setup with a DSL modem instead of a cable modem. I also have my printer connected to the ethernet switch, and I can print via that connection from any device on the network, regardless of whether the device connects via WiFi or ethernet.
Alternatively, you can leave the modem and WiFi adapter where they are now, insert the ethernet switch, and use the powerline adapters to connect the computer to the network. The network speed to the computer will probably be slower than than a pure ethernet connection, but it may be fast enough for your purposes.
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