Finally got access to the cellar where the box for our area is. The engineer came, sorted the box. He then came up to tge house and checked our installation etc. He looked at the adaptor in our wall (a reverse adaptor) and told me, this is so old, it should have been changed ages ago!
He changed tge adaptor, shortened tge cable from the ladt engineer and lo and behold, all our channels are working AND our Wifi is faster too!! We have coped with this for months now! Thanks to this guy (didn’t get his name), we have a proper working system!! Excellent!! 5 stars to the engineer!!