I have Roku 2 and has standard IR remote. One day after a power reboot my remote stop working. I changed a battery, got a replacement remote but it doesn't seem to work. Is there a way to test or check if the IR sensor on the receiver is bad?
The only way you can be sure its no longer working is prove you two roku remotes are working fine, check the remotes be pointing them at cell phone camera as you press a key, if you see flashes then the remotes are working. Then that means the roku isn't working.
The Roku 2 HD is model 3000, first released in July 2011. Honestly, if it's not functioning correctly, it's time to toss it. That player is no longer supported by Roku, it won't get any further updates, and frankly is extremely underpowered compared to what's available now from Roku, Amazon or others. Netflix is dropping support for it as well, and I wouldn't be surprised if other channels begin failing.
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.