@pdxeric wrote: ... Confirmed the batteries are installed correctly (both pointing the same direction) ...
As I don't have a Roku Simple Remote (the one that ships with the Roku Express) I can't confirm the orientation of the batteries, but I do know that some remotes have the batteries point in the same direction, and some remotes have the batteries in opposite directions.
Verify the proper orientation of the batteries.
DBDukes Roku Community Streaming Expert Note: I am not a Roku employee.
If this post solves your problem please help others find this answer and click "Accept as Solution."
You can confirm if your remote is sending IR signals by pointing it at a digital camera (one in a phone or tablet will do) and pressing a button or two. If working you should be able to see flashes on the camera view screen.
Roku Community Streaming Expert I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well. If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X