You can't just do a "Check connection" from the Network settings or a "System restart" to restore the connection?
I wouldn't say it's normal, but it doesn't seem unusual for Roku devices to lose their connection. I've found that Roku devices are the most stable if I set up a DHCP reservation in my router so the IP address given to the Roku device doesn't change and don't use "Auto" as the Wi-Fi channel - pick a channel and stick with it until there's an obvious problem that might necessitate trying a different one.
Thanks for the tips. I'll try them.
