Hi Lenny - I tried that again just for good measure but it didn’t make any difference. Everything is pointing to the device being at fault and now I’ve managed to freeze myself out of my Vodafone account .Note what network your phone has logged onto then put the RWG sim in your phone and change to the same network then put it back in the Mifi, worked for me.
I’ll see what RWG come back with but we need to get on the road …..