Is there a permanent fix I can do to reliably use the app remote without having to check connection every single day because the wake this device function NEVER works and it's becoming so very annoying.
Which Roku device are you using? Do you have an Android or an iOS device? Which version of the Roku Remote Control app are you using? If your Roku is falling asleep try disabling the bandwidth saver function under settings/ network. Is your Roku plugged into the wall or USB TV power? Keep in mind that your Roku and phone must be on the same WiFi channel. More information would help.