Cannot join external Realm on FireTV using Ethernet

When FireTV is connected to Ethernet, user is unable to connect to external server such as a realm. Message given is "You must be connected to WiFi to play with your friends." Disconnecting Ethernet and connecting via WiFi works without issue. This problem appears to be related to the issues that was solved in version 14 https://bugs.mojang.com/browse/MCPE-12061