![]() If you have a DSL or fiber internet connection, your ISP is likely to require you to use its provided modem, which usually serves as a gateway and router as well, and the situation is more complicated if you also get phone service from your ISP. Typically you can save $5 to $15 on your monthly internet bill if you use your own modem and router instead of the equipment your cable provider offers. But you might need to replace a router because you want better coverage, because you’ve added more devices to your network and your old router isn’t keeping up, or because you want to take advantage of the latest improvements in Wi-Fi technology, which can change more often than modem standards do. Modem technology changes slowly, and you can usually use a modem for years until it breaks. You need the features of both a modem and a router, integrated or not, in order to have an internet connection for all of the devices in your home.įor people who have internet access provided by a cable company (and who don’t have gigabit or higher internet speeds), we recommend using a separate modem and router if possible. Often, your internet service provider will give you a device typically referred to as a gateway, a single box that serves as both modem and router, but these are still different technologies. A router is a box that lets all of your wired and wireless devices use that internet connection at once and allows them to talk to one another directly. A modem is a box that connects your home network to your internet service provider, or ISP. Changing that interface with a media converter does not change that fact.While both a modem and a router help your devices connect to the internet, they have separate (and complementary) functions. The built-in modem expects DOCSIS signals on the coax port, not Ethernet. This will limit its usefulness as a switch and AP if you want to add it to an existing network.Įdit: using an adapter to convert coax port on your combo unit into Ethernet is not going to work. Some combo units do not allow many changes on its firmware, for example, not allowing you to disable DHCP. Disable DHCP on the combo unit, and set its SSID and password to the same as the current router. To use the combo unit's WiFi as an Access Point, first give it a valid but unused IP Address on the subnet you want to connect it to, then connect it's LAN side to a switch or another router's LAN ports. Just connect the LAN side to any switch or another router's LAN ports, and the combo's LAN ports will be live. So the 4 LAN ports and the built-in WiFi can still be used. Even if you don't use the built-in modem, the LAN side should still be active and usable. What you can do is use your old combo unit as just a switch and an Access Point, and that might actually be what you are wondering about. So if you aren't using the cable modem portion to connect to anything, there really isn't anything for the router to do, because there is only one network, not two. In your case, these two different networks are your local LAN, and the ISP's network reached through the built in cable connection. u/RoweDent created this awesome resource on network theoryĪ "router" is something that can move data packets between different networks. u/tht1kidd_ has created a suggestion post regarding information everyone needs to provide when asking a question about their network There have been some excellent guides written in this sub, and we're always looking for more! The same goes for downvoting of comments or posts for "stupid questions" or not being as knowledgeable as others. Extend help without judging others for their ignorance. With profession shall come professionalism. ![]() If you're unsure if this is r/politics, someone done messed up. Sometimes discussions can go a little overboard and that is ok. Using affiliate Links in your own place is your decision. For this reason, please use normal links, even if they're long. URL shorteners tend to hide the real use of a link. To help with that, reddit provides the reddiquette. Ads and self promotion are not welcome here. This is a support and discussion subreddit. Please flair your posts as Solved, Unsolved, or simply Advice. If you can't find what you're looking for with the search function please feel free to post a new question after reading the rules. ![]() Please use the search function to look for keywords related to what you want to ask before posting since most common issues have been answered.
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