Loose connections are the most frequent cause of signal loss. Screw one end of the coaxial cable firmly into the "CABLE IN" port, turning it clockwise until it feels snug.
Power Source Roku TV Cable Setup and Connection Guide
Power cycling these devices refreshes the signal and often resolves authentication errors with your provider. This process can take several minutes, so it is best to let it run uninterrupted.
Required Equipment Checklist Gathering the right tools before you start eliminates frustration and prevents the need to pause midway through the setup. Select "Antenna/Cable" and run a channel scan.
Secure Cable Connections for Power Source Roku TV Setup
Go to Settings > TV Connections > Antenna Connections. It is usually situated near the bottom left or right edge of the set.
More About How to connect cable to roku tv
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