I'm experiencing some problems registering my Sony Xperia XZ running Android 8.0 with my TalkTalk box. The TT Planner app or Youview app searches for my box over my wifi, and cannot find it. However, I've installed the apps successfully on older Sony phones running Android 7 and 5, both of which find my box straight away, so there doesn't appear to be any problem with my wifi, router, or TalkTalk box.
Has anyone else seen this, and hopefully found a solution? Thanks in advance... :)