The Netflix app on my vizio svt422xvt (one of the Vizios with VIA internet & wifi built-in) won't connect to Netflix. It directs me to the Netflix website for help, but Netflix help tells me to contact the manufacturer. The app starts, but it doesn't connect to the Netflix server. Other internet apps, such as Facebook, appear to work fine. Thanks for any help!

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 Vizio Netflix 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 Vizio Netflix 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.

I recently purchased a VIZIO E550i - B2 and had the same problem at set up. i called Customer service and it was resolved pretty quick. here is what I needed to do. (This is for a wireless internet connection)
1) First of course be sure your wifi is working, this should have been confirmed during the initial setup.
2) Go into the VIZIO menue and scroll down to Network and open it (OK Button)
3) Scroll down to Test Connection and open it (Same as above)
4) See if anything is registering where it says download (in my case it was blank)
5) The service rep had me unplug the VIZIO, then go to my router and unplug it for 15 sec., then return to the VIZIO and hold the power button on the TV set in for 30 sec.,then plug the VIZIO back in and turn it on using the remote.
6) then I went to Netflix from there and I was able to register the VIZIO with my existing Netflix Account. Or , if I needed to I could have opened a new Netflix account.

I hope this helps.