My ROKU Express (less than a month old) was working fine. Today I saw someone say that you could cast your cell phone screen to your TV thru ROKU. I had to download a cell phone APP, and it worked fine. Then when I tried to go back to Xfinity Beta, it would not work. I deleted the app from my cell phone. I changed a ROKU setting to not allow my cell phone to cast the screen to the ROKU/TV. I did a ROKU factory reset several times, unplugged the ROKU then plugged it back in. I did a restart of my modem. Other ROKUs work fine, other APPs (Prime/HULU/Netflix) on the problem ROKU work fine. Xfinity Beta still does not work only on problem ROKU. Error I am getting is "error createdrmsession.403-102". I saw this error on older posts but not recently. I am running out of ideas. Thanks in advance for any ideas. Phil.
Each channel on Roku is built and maintained by the service provider themselves
Channels are installed to your account, not a specific player. If you uninstalled then reinstalled on one, and the others don't check for updates during that time, they should be left alone. But if they update themselves while you have that channel uninstalled, they will be removed from the other devices as well. That's a good/bad thing with Roku players. Good in that once you've installed a channel on one device, it will appear on all the rest automatically. Just need to configure any logins necessary, as those are saved per device. Bad in that you remove it from one, it's removed from all. The only way around that is to have different Roku accounts for each player, but then you lose the good side of it.