I think it's just communications errors for the most part. There has been extensive testing throughout this whole project but as with anything wireless the signal can be affected by anything (Wifi, Hive, a big tree, someone's van parked outside, metal cables etc. etc.).
The communications service providers only have the obligation to ensure there is signal to the comms hub, if there are environmental factors within the home then that's unfortunately the Supplier's problem to manage customer expectations e.g. it might only work if you're sat on top of the meters!
Originally Posted by woz