If the network that the flex is on has a 192.168.1.x IP, then there could be a conflict. I would suggest renumbering the network since a lot of public and home wifi is 192.168.1.x. That is the most common problem.
Thanks everyone. I got everything working again. Not quite sure what I did, but sometimes that's the best way I guess. All OK now. Been working for the last few hours and working many European stations. Having a blast once again. I hope this doesn't happen again... at least not for a while. 73!