I have the Verizon Actiontec Router Rev. I, and I just got the Chromecast in the mail from Amazon. I normally kept my Router with my SSID Broadcast: set to Disabled as an added security measure, but I found that by doing this, the Chromecast did not like it and would not work. Even though I could manually type in the SSID, the Chromecast would still give me Network error messages and would not connect. Chromecast would not function on my network unless I Enabled SSID Broadcast under the wireless Advanced Security Settings.
| SSID Broadcast: | Enabled |
| Level 2: Stop your router from broadcasting your Wireless Network Name (SSID) |
| SSID Broadcast (Allows you to prevent users who do not know your SSID name to access your router wirelessly.) |
I suggest that most of you that are having problems connecting, check your Wireless Status and see if your SSID Broadcast is Enabled or Disabled, and if Disabled, set it to Enabled. Also, make sure you are using WPA2 Security with a good password. This worked for me on both my Samsung Galaxy Note 3 (using the Chromecast App) and on my Windows 7 PC using the Chrome browser.
Hope this helps and good luck to all!