First off, Modems and Routers are two different devices with separate functions. Simply put, a modem is like a “translator” that reads the signals that come in from outside the home and translates them to be the internet signals that can be read by phones, computers, etc. A router then takes the “readable” internet and broadcasts it so WiFi devices can connect and access the internet.

That said, It is possible to get a cheap modem from your local electronic store. (I’ve even seen cheap modems at Goodwill or other thrift stores) However, modems aren’t exactly plug-and-play. You need to get a modem that is compatible with your ISP. Some ISPs don’t even allow bring-your-own modems, so you need to call your ISP and ask what options there are. If your ISP is a big-brand company, modems sometimes even tell you on the box if it is compatible or not. Once you do have a modem that is compatible, you’ll need to contact your ISP and have them register it to you. You’ll have to give them information like it’s serial number.

If everything runs smoothly, you can have your internet back up and running within a few hours. Good luck!