This is a puzzler. Looking back over things to see what might have been missed, one thing is sticking out. May not lead to anything, but we're trying to close off all avenues that don't work to find what does.
Your first post says you're getting a message, and that you are following the instructions.
I am using a Roku Ultra. When I select the Sling channel, I get the following message:
Sling needs a software update to proceed. Please press the home key, then go to settings...
I followed the instructions ...
Is it possible to NOT follow the instructions? That is, do you have an OK or CONTINUE or some other button or way to proceed? I'm wondering if the message is the glitch, and skipping past it resolves the glitch and everything works. Is that a possibility? Is there a way to close, ignore, or otherwise bypass the message and proceed?
Along that line, can you post a photo of the message. The entire TV screen would be helpful, if you can post that.
Again, just walking through everything and trying to see what might be possible.
Roku Community Streaming Expert
Note: I am not a Roku employee.
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