Interrupt WiFi on Neatgear AC 797

Hello, I was given a 4G router that I use every day on my computer. However, despite a good 50Mb/s connection, at certain times of the day I find that the connection drops out. It's more a question of micro-cuts that don't allow me to use my computer in good conditions, especially for games.
Is there a solution for these micro outages? Or is there a way to switch to an ethernet port to ensure a stable connection (micro-USB -> ethernet adapter + load)?

Thank you in advance.