If the hotel has an existing Ethernet connection then you could turn it into a wireless hotspot using a device like HooToo Wireless Travel Router, TP-Link N300 router or RAVPower FileHub, Travel Router AC750.
There are also WiFi-to-WiFi bridge devices (RAVPower FileHub, Travel Router AC750), which allows you to tap into a hotel WiFi hotspot and at the same time creates its own Wi-Fi network. This device comes handy when there isn't an Ethernet connection available.