The 1st thing I do when searching is use Search Tools to set my location (generally set it to UK)
This overrides Google using your Internet address when displaying results, or I should say, it did override your Internet address.
This morning it doesn't matter what I set my location to Google is still using my Internet address.
Have Google switched of location settings in Search Tools or is something broken?
Note: doing the same thing on IE, Chrome and FF whether signed in to Google or not.