Huawei ZTE MU500 User Manual page 7

 View Connected Devices. You can Block a device after viewing it.
 Show the list of Blocked devices
 Set the maximum number of Wi-Fi devices up to 15 x 2.4GHz and 15 x 5GHz connections.
 2.4GHz connections are most commonly used but sometimes the Wi-Fi spectrum can be congested
which will slow down your 2.4GHz Wi-Fi speeds. If your connecting device supports 5GHz WI-FI then
this will potentially give faster speeds and better connectivity.
 Set the Wi-Fi sleep timer.
SETTINGS > NETWORK
 Switch International Roaming on or off (Note extra charges may apply when roaming)
 Set the Network Selection mode, Automatic, 5G, 4G or 3G only.
SETTINGS > DEVICE
 Set the Screen Brightness, Timeout, Sleep status display and set a security PIN on the Lock Screen
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