Suddenly I cannot find wifi on iphone 4s

I have an iPhone 4s with iOS 8.1.2.
I find myself abroad for a month. I have been using my iPhone normally for three weeks without any trouble. Suddenly yesterday, after having worked with it for several hours, it cannot find anymore the wifi of the place in which I am staying, even if all other people can still use it.
I already tried to disable the location setting and also to reset the original settings. None of these have produced any results. Can you help me?

Hi ff/medic,
To browse your music by playlist, look at the bottom of the screen in the Music app, you should see a Playlists button to click. If not, select the More… button.
You can find this and much more information in the iPhone’s User Guide -
iPhone User Guide
http://manuals.info.apple.com/MANUALS/1000/MA1565/en_US/iphone_user_guide.pdf
Thanks for using Apple Support Communities.
Best,
Brett L

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@dchmielowski
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~~~~~~~~~~~~~~~~~~~~~~~
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~~~~~~~~~~~~~~~
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 Cheers, Tom

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