I work at a large restaurant that uses handheld devices to send orders over Wi-Fi. The owner added several networking devices to improve coverage, but now the handhelds periodically stop working. They appear to remain connected to Wi-Fi, while wired computers on the same network continue working normally. The owner is not very familiar with networking, so I'm trying to figure out whether these are actually multiple routers, access points, signal extenders, or mesh nodes, and what configuration might be causing the problem. What should we check, and what would be the proper setup for a large restaurant?
4 Answers
A typical setup should have one main router handling the internet connection and DHCP, with switches and properly configured wireless access points connected to it. If several ordinary routers were installed with their default settings, each may be creating its own network and handing out IP addresses. That can lead to conflicts, roaming problems, and devices appearing connected while applications stop communicating. The extra units should usually be placed in access-point or bridge mode, with DHCP disabled on them.
There may also be too much traffic if the network carries customer Wi-Fi, music streaming, phones, cameras, computers, and order terminals all at once. A professional network installation could separate those systems into different networks or VLANs, prioritize the order devices, and survey the restaurant for dead spots and interference. For a site serving hundreds of people, having an IT or networking professional configure it properly is likely worth the cost.
Since the handhelds stop working while still showing a Wi-Fi connection, the issue may not be signal strength alone. It could be DHCP or IP conflicts, poor roaming between access points, wireless interference, or the ordering software losing access to its server. Check whether the devices receive valid IP addresses and whether they can still reach the server when the problem occurs. Also review the access-point and router logs.
The hardware matters here. Multiple routers, plug-in range extenders, and mesh satellite nodes all behave differently. For a large restaurant, several wired access points are generally more reliable than stacking consumer routers or using random repeaters. They should use a coordinated wireless configuration and be positioned to provide coverage without excessive overlap or interference.
I’m going to check exactly what equipment was installed so we can tell whether they’re routers, access points, or extenders.