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Is the time and date set correctly on your phone? Whenever I have seen this before it was because the date on the phone did not match the certificate.
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Is the time and date set correctly on your phone? Whenever I have seen this before it was because the date on the phone did not match the certificate.

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The time and date is set correctly on my phone. &nbsp;It is updated automatically.
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The time and date is set correctly on my phone.  It is updated automatically.

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I had to reinstall and the certificates on the web server. &nbsp;That fixed everything. &nbsp;Host company said there were certificates that were overlapping.
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I had to reinstall and the certificates on the web server.  That fixed everything.  Host company said there were certificates that were overlapping.

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Hello,<br />
<br />
I am using a Samsung Galaxy S5 phone, Android version 4.4.2. &nbsp;I visit a site with a https and shows a valid certificate on a Windows 8.1 PC with IE 11, but the same site shows an error on the Samsung phone. &nbsp;The error is:<br />
<br />
The site's security certificate is not trusted! &nbsp;You attempted to reach <a href="http://www.family.com" rel="ugc">www.family.com</a>, but the server presented a certificate issued by an entity that is not trusted by your computer's operating system.<br />
<br />
What can I do to have the phone show the site is secure?
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Hello,

I am using a Samsung Galaxy S5 phone, Android version 4.4.2.  I visit a site with a https and shows a valid certificate on a Windows 8.1 PC with IE 11, but the same site shows an error on the Samsung phone.  The error is:

The site's security certificate is not trusted!  You attempted to reach www.family.com, but the server presented a certificate issued by an entity that is not trusted by your computer's operating system.

What can I do to have the phone show the site is secure?

The site's security certificate is not trusted

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android's user interface is based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, variants of Android are also used on notebooks, game consoles, digital cameras, televisions, automobiles and other electronics. Applications are usually developed in Java programming language using the Android software development kit (SDK), but other development environments are also available, including Delphi, Ruby and Visual Studio (using C++).

Android

A cellular phone (also known as a mobile phone, cell phone, hand phone, or simply a phone) is a telephone that can make and receive telephone calls over a radio link while moving around a wide geographic area by connecting to a cellular network provided by a mobile phone operator, allowing access to the public telephone network. Mobile phones that offer services such as text messaging, email, Internet access, business applications, gaming, photography and more general computing capabilities are referred to as smartphones.

Cell Phones

A smartphone or smart phone is a mobile phone with an advanced mobile operating system that combines features of a personal computer operating system with other features useful for mobile or handheld use. They typically combine the features of a cell phone with those of other popular mobile devices, such as personal digital assistant (PDA), media player and GPS navigation unit. Most smartphones can access the Internet, have a touchscreen user interface, can run third-party apps, music players and are camera phones. Most Smartphones produced from 2012 onwards also have high-speed mobile broadband 4G LTE internet, motion sensors, and mobile payment mechanisms.