Wired versus wireless
Wherever practical, a wired Ethernet connection for stationary terminals is more reliable than Wi-Fi. Reserve Wi-Fi for handhelds, tablets, and devices that need to move around the space.
Separate your POS traffic from guest Wi-Fi
If you offer guest Wi-Fi, keep it on a separate network from your POS devices. A guest downloading a large file shouldn't be able to slow down your checkout line.
Router and coverage basics
Make sure your router or access points actually reach every spot a device will be used, including a patio, a back stockroom, or a second floor. Dead zones are a common and preventable cause of dropped connections.
- Test Wi-Fi signal strength at every checkout location
- Position access points to cover the whole sales floor
- Keep firmware updated on routers and access points
- Use a business-grade router rather than a basic consumer model
Plan for a backup connection
A cellular hotspot or a cellular-capable device is worth having if an internet outage would meaningfully cost you sales. Test the backup before you need it, not during an outage.
Bandwidth is rarely the bottleneck
Most POS systems don't require much bandwidth to run. Connection stability and coverage matter far more than raw speed for day-to-day reliability.
Check this before go-live, not after
Confirm your network is ready during the setup window, alongside hardware and menu configuration, rather than discovering a dead zone on your first busy day.