Most devices will connect if the SSID and the security protocol is the same. If they set up a network with the same SSID and security protocol, using the same password (that they asked the waitress for!), then devices will automatically connect to it.
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Most devices will connect if the SSID and the security protocol is the same. If they set up a network with the same SSID and security protocol, using the same password (that they asked the waitress for!), then devices will automatically connect to it.