Chris Green wrote:
Any ideas anyone? I suppose I could try a different port for ssh but as it's not specific port blocking I don't think this will fix it.
It may help. My understanding is that at least one of the major networks (I think the ex-Orange but I've not looked it up) has a breathtakingly stupid configuration... and that's coming from me, who has broken networks in some flabbergasting ways.
Whatever you do, do not yourself start port blocking while travelling. It can make the ferry journey last a very long time. (sorry :-) )
Regards,