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But is your TV a "Smart TV"? That means does the TV connect to the internet. Just because you have Comcast connected to your TV doesn't mean it is getting an internet signal. The black coax to the TV only carries a TV signal.
To get internet service to your TV first you have to determine if it is capable. If it does have a wireless receiver in it, you will have to configure it to attach to your wireless base station. If it doesn't have a wireless adapter you will have to connect a network cable from the base station into the TV and then configure it to work with your network. Once you have that internet signal working on your TV you will be able to use Netflix on your TV.
Typically when you use Netflix for the first time it requires you to link your device by entering a code provided by the Netflix website. Perhaps exchanging the modem has made it necessary to "re-link" your device? If this is the case, log-on to Netflix's site and click on "Your Account & Help" on the Netflix website and click the link titled "Manage Netflix Ready Devices and Computers" from the "Watching Instantly on Your TV or Computer". You can then link the device pick-up where you left off! :)
Assuming you have a wireless modem...and a smart tv.....it should work....how far is the distance from the tv to the wireless modem? If you have a smart phone, download the Netflix app... and try it on your phone..... if it works.... start walking away from your modem into another room, hall, where ever ... and if you cant get too far before Netflix give you an indication of your problem... then the out put power of your modem isnt very good. you can try putting you modem higher on a shelf for a stronger and farther signal.
I can get Netflix from across the street from my house on my smart phone, and I have my modem sitting on my window sill behind a curtain.
Good luck.
1.Connect your smart TV directly to your modem.
2.If you're connecting through a wireless router that's connected to your modem and still can't connect after restarting your network, try bypassing the router.
3.Turn on your smart TV and try Netflix again.
You want to try the Roku player so you can stream NetFlix to your TV over your home internet connection. It can be a bit of a hair pulling experience to set one up. So I'll try and make it as easy as it can be. First; Once you receive your player, and connect it to your TV. You need to get your new player on to your home network, be sure you have a router with wireless capability's. You will need to know the name of your home network, and you will need to know your WEB key or the pass key to secure your access into your home network. To do this, go to "Settings" (on the Roku menu) then scroll thru the menu until you see "Network", press network, look for your home network and press on it, then put in the WEB key to access your home network router. Remember after each step unplug the Roku for 10 to 20 seconds to set the memory.(may take more than 1 time with some players) NEXT; Go to Roku's internet site and set up your account with them, they will need info on how to bill you if need be. So they will need some bank account info Or you can use PayPal. They need this info in case you order a pay for movie or swap to a paid channel. Next On the Roku "My Account" page, down at the right bottom of the page you will see the "Link Player" button, follow this to receive your Link code, write this code down and go to your TV, Roku menu screen and put in the Link Code. This will now activate your new Roku player. Next you will want to go to NetFlix and set up an account with them. Same thing here, they need bank account info to bill you, if you stay past the free demo time limit. Now go back to your TV, Roku menu and scroll thru the menu to press on NetFlix, here you will go thru the Menu to get another link code. This time it will come on the TV, Roku menu to go back and put that code in your NetFlix account to activate your Roku player with NetFlix. Now in the process of all this you may have to unplug your Roku player after each link code to set it into memory. This causes a lot of folks trouble as they do not, "Turn Off" the Roku after they put in the network key, the Roku link code, then again after they put in the NetFlix link code. One last bit of help. Do not create a large Instant Queue on your NetFlix account. This causes problems with the memory usage in the Roku player, and It can keep NetFlix from loading.
I had the same problem with my Vizio XVT473SV. I couldn't find the Netflix Activation Code. When I clicked on the Netflix App, the TV would ask me if I wanted to connect to Netflix, then it would ask me if I was a Netflix member. After clicking yes to both, it would tell me it couldn't connect to the Netflix server, check with Netflix.com/tvhelp. After a couple hours of troubleshooting, the solution was......your first use of the Netflix App has to be via the Ethernet Port/Cable. This will give you a screen with the Activation Code, after you activate the code in your Netflix account, you can go back to using WiFi on your Vizio TV to connect to Netflix. Step by step instructions are... 1) Exit the VizioNetflix App. 2) Physically connect an Ethernet cable to your broadband (just temporarily) 3) Check to make sure the Vizio is using the Ethernet port and not your WiFi (Apps Button - HDTV Settings - Network...may have to reboot the TV to get Ethernet port connection) 4) Start the VizioNetflix App 5) Click OK to start the Netflix App 6) You should now see a different screen that gives you the Netflix Activation Code. 7) On your Computer, Login in to Netflix, 8) Click on "Your Account & Help" link on upper right corner 9) Scroll down to Watching Instantly on your TV or Computer section 10) Click on Activate a Netflix Ready Device 11) Enter the Activation Code shown on your Vizio TV and click Activate 12) Once your Netflix account (on your computer) shows it is active, your Vizio TV will automatically log in. You should see your Instant Queue. 13) Exit the Netflix App, unplug the Ethernet cable, Turn Off your Vizio TV. 14) After 20 seconds or so (remember the TV is software driven), turn the TV back on and your WiFi should connect again. 15) Use your Netflix App and this time it should automatically connect via WiFi note: just make sure that your wireless DSL/Cable Modem or Wireless Router is not blocking your WiFi connection request from the Vizio. You can check the connection status in the modem/router or in the Vizio in the HDTV Settings - Network.
From your description, you appear to be connected to the router fine.
Try powering down the modem from Comcast for about 2 minutes then power it back up. If it doesn't come back, call Comcast service as it is likely on their end.
Comcast has a little known "trick" that they use when setting up users. Here's how it works:
When Comcast first comes to setup your new cable modem service, they insist on connecting it to your computer and "testing" it. Most people think nothing of it, and that it's good customer service ...truth be told, what they are doing is attaching your computer's MAC address to that cable modem, so that you cannot create a wireless network. This is because they want you to pay them $150 to do this for you.
In this situation, since the modem is a modem/wireless router in one, my guess is that the MAC address on your machine now does not match the MAC address on the new router, which is what Comcast has stored in their database(s).
Try this: on your computer (while connected to the modem), perform a release on your IP address (start, run, cmd, then type "ipconfig /release"). Disconnect the ethernet cable from the computer. Turn computer off completely. Hold down the reset button on the cable modem until it performs a reset. Once it's back up and running, boot up your computer with the cable back in the ethernet port.
The cable modem should assign a new address to your computer. However, that may or may not work ...this is an easy workaround with a Linksys router, but not necessarily with the all-in-one devices.
Worst case scenario: contact Comcast and notify them that the new modem is not recognizing your computer's MAC address and that it needs to be updated in their system. They will scan your computer (through the telnet interface on your modem) and get your computer's MAC address, then (hopefully) make the necessary changes on their end.
After that, everything should work flawlessly. If not, insist on a Comcast tech to "fix" the service that you are paying for.
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