Model: HR54-500 won't save internet password - DirecTV

My cable internet service cuts out momentarily fairly often. Until another service becomes available in my area, it is what I have to use. While the router resets itself successfully every time this happens, my Model: HR54-500 requires me to set up internet connection each time. To make things even more inconvenient, the receiver does not save my lengthy WiFi password causing me to have to re-enter it every time my internet "hiccups". Is there something I'm missing that I can do to make the receiver "remember" my internet settings?

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