4G Modem Disconnecting Every Hour?

Hi Guys, I bought a 4G Modem Huawei E5573, The modem automatically goes to sleep after 1 hour and disconnecting me from internet. I need to be able to

Hi Guys, I bought a 4G Modem Huawei E5573, The modem automatically goes to sleep after 1 hour and disconnecting me from internet. I need to be able to connect to this device via TeamViewer at random times as I don't have access to it often. What can I do to make this modem stop disconnecting every hour? I would appreciate the help

or:Hi Guys, I bought a 4G Modem Huawei E5573, The modem automatically goes to sleep after 1 hour and disconnecting me from internet. I need to be able to connect to this device via TeamViewer at random times as I don't have access to it often. What can I do to make this modem stop disconnecting every hour? I would appreciate the help

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