TTG not been able to connect to TomTom for a few days?

[ADB100]

I recently wiped an Android head unit device that had TTG 1.17.1 installed. I reinstalled TTG (tried from the Play store and the local .apk), however I get the error "can't connect to tomtom try again later". This has been the same for a few days. I also have a Samsung S6 edge that has been wiped and I tried the same on this - same result.
I have another phone and a Samsung tablet both with working installations of TTG 1.17.1 and the UK map. On both of these trying to download a new map or results in the error "Unable to show maps. Check your Internet connection then try again". Similar error when trying to download voices - "Unable to show voices. Check your Internet connection then try again".
I did some packet captures and can see the devices trying to connect to "lcms.services.tomtom.com". If I try to connect [Only registered and activated users can see links. ] from a PC I get "HTTP 410 Gone'. So is there an issue with the TomTom servers or has there been a change in how things are accessed?
Andy