You’ve just picked up your iPhone to check an important email, only to be greeted by an annoying pop-up message: “Cannot Verify Server Identity.” If you’ve encountered this error, you’re ...

To correct the cannot verify server identity error, the first thing you should do is check that your iPhone is displaying the correct time and date and force quit the Mail application on your phone.

As a result, if any apps on your iPhone, iPad, or Mac attempt to connect to a secure site, the network returns the certificate for its local hotspot portal server.

You can fix iTunes can't verify the identity of the server error on Windows and Mac computers by following these solutions for each.

So the background to these 'cannot verify server' messages is that for some time - perhaps over a year - I have periodically noticed dodgy ads on Ars (mobile site only) that are served up by a ...