Disconnects after a few hours requiring setup again

I use this repeater in an apartment for the purpose of bringing a hard Ethernet port to a surround sound receiver that doesn’t support WiFi. The signal strength from the original router is good. The repeater is easy to set up and works great...for a few hours, but then loses connection with the router. After that I am forced to go through the setup again which takes a few minutes each time. I will be sending this back.

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