I have a couple of articles that can help you troubleshoot this issue a little more. The first is an article called a quick assist that should be able to help you track down the source of this problem:
We also have another article that will help you troubleshoot more thoroughly for this issue, and it can be found here:
Take care, and thanks for visiting the Apple Support Communities.
Thank you, braden85, but our problem is specific to France, it seems. We have no problem with our MacBook Pro connecting to any wifi in the UK, either at home or anywhere else. But as soon as we are in France - whether using our neighbour's wifi or any Tourist Information Centre, hotspot, etc, etc - we fail to get a connection. The Mac finds the router, but will not connect to it. And as we have no router of our own in France to experiment with, we can't really start investigating everyone else's router!
However, as we said, our old MacBook connects every time! So we feel it must be something to do with the settings on the MacBook Pro, or the channel frequencies which it is set up to use, or something.
Any more suggestions, please?
Well, I'm afraid it didn't work! We got here two weeks ago, and It has taken us a while to check everything out. My son has managed to connect the MacBook Pro to the old laptop using an ethernet cable, and in this way we can use the MacBook Pro online. However, the basic problem remains, and we can't use it by itself, which is a bit annoying! Any more suggestions?
Hi again st.justwest,
Thank you for using the Apple Support Community. Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://expresslane.apple.com/GetproductgroupList.action.