Ethernet is the most stable choice for fixed kiosks. It removes signal interference from walls, people traffic, and neighboring networks. Wi Fi can still be reliable if the access point is close and channel planning is done carefully.
Performance
Video heavy signage and real time dashboards benefit from Ethernet. If you use Wi Fi, place access points within a short distance and keep device counts per radio reasonable. Ensure quality of service rules prioritize signage traffic during rush hours.
Security
Segment kiosks on a separate VLAN. With Ethernet this is straightforward at the switch. With Wi Fi use enterprise authentication and strong certificates. Disable unused services and restrict outbound domains to your CMS and analytics endpoints.
Installation Practicalities
Ethernet requires cable pulls and sometimes conduit. Wi Fi reduces cabling at the screen but still needs clean power and careful site surveys. For window facing displays, metal framing can block signals. In those cases Ethernet is simpler.
Testing Checklist
Measure throughput at each screen location
Validate content download times during busy hours
Simulate an outage and confirm local fallback works
Log packet loss and latency for at least one full business day
Final Thoughts
Use Ethernet when you can. Use well planned Wi Fi when you must. In both cases, design for graceful degradation and local playback so viewers never see a blank screen.
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