You do not connect it to the PS3
Purchase an ethernet cable, either cat5 or cat6 long enough to run from the back of your PS3 to the Modem. If your modem has something already plugged into the ethernet, you need to unplug it and plug in the PS3. If you want to be able to use both without having to switch the plugs you need to purchase a router that you connect to the modem and then connect everything to the router.
Just connect the PS3 to the Modem with a ethernet cable go to your settings menu and make the internet connection Fast easy and no WiFi
If the Modem was already working and for example you unplug your computer and plug in the PlayStation 3 it will work after you go to the PS3 network settings and make the connection. It will be easier on you to find a used router and plug it into the modem and then plug both the computer and PS3 into the router.
After you have broadband or DSL internet service then you need to purchase the equipment needed to connect the PS3. The PS3 can be connected only with WiFi or an ethernet cable to your modem or router
You can not connect the PS3 to the phone
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You do not connect it to the PS3
by connecting with via usb PS3 can not connect to the internet with a USB modem
You connect you PS3 to the Modem to allow you access to the PlayStation Network with either an ethernet cable or a WiFi connection with a wireless modem or router
You purchase a router and connect it to the cable modem and then connect everything to the router. Otherwise you have to unplug whatever is connected to the cable modem (for example a PC) and plug in the PS3 . Whatever you have unplugged is no longer connected to the internet until you unplug the PS3 and plug it back into the modem. Once the PS3 is connected to the cable you need to go to network settings on the PS3 and set up the network connection.
Purchase an ethernet cable, either cat5 or cat6 long enough to run from the back of your PS3 to the Modem. If your modem has something already plugged into the ethernet, you need to unplug it and plug in the PS3. If you want to be able to use both without having to switch the plugs you need to purchase a router that you connect to the modem and then connect everything to the router.
You connect your PS3 to the router and then to the internet modem with ethernet cables. The PS3 has a single spot in back to plug in the cable and the router has many spots in back to connect. The router will be connected to the modem. Once the cables are in place go to the settings on the PS3 and then Network connections.
you need to connect your ps3 to a wireless modem. or use an ethernet cable.
If you have a router the ethernet cable connects to it. If you have another item like a PC connected to a modem you could disconnect the ethernet cable from it and plug in the PS3 until you purchase a router.
You must subscribe to an internet service and have WiFi modem or router or connect an ethernet cable to your PS3 from a router or a Modem with internet service
If your PS3 needs to connect to the internet use your XMB setting menu under one of the last on the list and having to do with internet connections. The PS3 has the ability to to connect to Broadband cable or DSL internet with WiFi or ethernet cable and I would not call that a PS3 modem The related link from Playstation Knowledge has the best description of the procedures and help with any trouble shooting you may need