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What is a captive portal or splash page?

A captive portal or splash page is usually a web page that appears on your web browser when you joined to an open public network. You will need to either:

  • enter an user name and/or password
  • enter a voucher code
  • login with your social media or email account
  • answer some questionnaires
  • click on an agreement

before you are allowed to use the internet from that remote wireless network.

Most providers have used also used the captive portal / splash page as a form of inexpensive advertising where you are shown their products and services before offering you internet access.

The EzHotspot also has a built-in captive portal to instantly show you the configuration page if you are not joined to any networks.

configure

In Apple devices, an automatic pop-up may appear to prompt you of such instances.

In Android devices, an alert notice may prompt you to sign in.

 

 

URL is not safe and https/lock has been crossed out. Certificate is not trusted message.

When the Ezhotspot Extender has connected to a remote public hotspot, the captive portal page does not show and instead the web browser shows the following:

  • url is not safe to proceed

  • https/lock has been crossed out

  • Certificate is not trusted

This is perfectly normal. The reason is that when web browsers are launched, they are already pre-configured to fetch some default websites or load the last website you were visiting, for example https://www.google.com. The https (not http) means it uses a secured SSL connection that uses signed certificate. 

Before login, the captive portal interecedes your request to https://www.google.com and tries to re-direct you to the login page. However, your web browser will detect something is wrong, because the cached certificate of web browser does not match the certificate of the captive portal or the captive portal does not use any certificate. This is a security check and is perfectly normal.

To see the captive portal page:

Below images show typical error messages from web browsers:

ex01

 

ex02

 

ex03

 

ex05

 

ex06