Ever since the last 2 7.7 updates I keep getting this message on my Premier plus "Not Connected to the Internet" when I go into a channel after I first turn on the Roku. I can go to setup connection and the wired connection I am using says active. I can hit proceed anyway and it will work because I do have a connection.
Annoying bug. Please help. I am on 7.7 build 4116-29.
There could certainly be an issue, but if by "turn on", you mean that you've just powered up your Roku, it does take a moment after the OS loads for the network to connect. Both my Roku TV and Stick (both wireless) take from 5-10 seconds to connect after the TV is turned on. Since I don't power off any of my other boxes (all wired), they are always on line when I "wake" them.
OK, so really just waking up, not turning on. Gotcha. In that case, the network should remain connected. Are you using wireless or Ethernet? With a wired connection, it's possible your switch/router has an internal setting to power down ports for energy efficiency when no activity is detected.
I've been having the same issue for a few weeks. The error message says "not connected to the internet" and I select "proceed anyway". Everything works fine. It's just annoying.