Amazon Echo in Hull

Our Amazon Echo works really well. Except sometimes. The radio service, on TuneIn, frequently stops or breaks up.

If we ask again for the station it plays again for a while and then stops. It used to do this a lot a while back, but it seemed to have settled down.

I'm not sure if it is the WiFi in the house or the networking in Hull. Anyone else in Hull with an Echo had a problem with radio playback?