The Roku phone remote cannot find the player: internet is only one requirement

Compare the actual network

Use the Roku’s Network → About information and the phone’s Wi-Fi settings to identify where each is connected. A guest network, another router or mobile data can explain why they are separated. Keep the network names in a private note rather than posting the complete screen publicly.

Do not assume that similar Wi-Fi names represent the same local network. Conversely, do not assume that a wired Roku cannot communicate with Wi-Fi devices: the important question is how the router connects and isolates those devices. Ask the network administrator if you do not control that configuration.

Check the app’s authority to connect

Roku documents a Control by mobile apps setting under System → Advanced system settings. Confirm that the intended mobile-control route is allowed. On an iPhone or iPad, local-network permission for the Roku app is another relevant check. Review the permission for that app instead of granting unrelated applications access.

If a work VPN is active on the phone, understand whether it sends local traffic through another network. Roku’s guidance identifies VPN routing as a possible discovery obstacle. Use your organisation’s approved way to pause or configure it; do not remove a managed security profile to operate a television remote.

Use the physical remote as the control comparison

If the physical remote operates the player and its installed apps can stream, the Roku has not simply lost every connection. Retain that working control while investigating the phone path. If neither remote method works, record whether the television input or player itself is unresponsive.

After changing one relevant permission or connection, reopen the app and select the correct device. Give the discovery result time to update. Repeated app reinstallations can erase a useful configuration without addressing the network that prevents discovery.

Keep a remote failure separate from playback

Once the phone controls menus, try one ordinary navigation action and one playback action. A successful remote connection does not validate the source account inside the player. If channels still fail, open a new diagnosis with the app name and visible error.

For support, describe the network arrangement, phone OS, Roku model and whether the physical remote works. Avoid public router credentials, full IP screenshots or account QR codes. This evidence shows which layer needs attention without exposing the household’s setup.