Unable to activate or import

Error messages during the activation or before importing a sample slider

1

28Connection timed out after X milliseconds

This error message can happen if your server is not able to connect to our website. Usually this is caused by a firewall or the server is not connected to the Internet. You should contact your server host and ask them to help you resolve this problem.

As a test they could connect to the SSH of the server and run this command:

ping api.nextendweb.com
	

It should return data.

2

35OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to api.nextendweb.com

This error message can happen if your server is not able to connect to our website. Usually this is caused by a firewall or the server is not connected to the Internet. You should contact your server host and ask them to help you resolve this problem. As a test they could connect to the SSH of the server and run this command:

ping api.nextendweb.com
	

It should return data.

"7Failed to connect to" errors

Server can't reach IPV6 addresses

Create a PHP file, and put this code inside it:

<?php
// create curl resource 
$ch = curl_init();

// set url 
curl_setopt($ch, CURLOPT_URL, "https://api.nextendweb.com");

//return the transfer as a string 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

$errorFile = dirname(__FILE__) . '/curl_error.txt';
$out       = fopen($errorFile, "w");
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLOPT_STDERR, $out);

// $output contains the output string 
$output = curl_exec($ch);

curl_close($ch);
fclose($out);

echo "<h1>LOG</h1>";
echo "<pre>";
echo htmlspecialchars(file_get_contents($errorFile));
unlink($errorFile);
echo "</pre>";

Upload it to your website via FTP, and take a look at it in your browser: http://example.com/test.php

This will create a log about what's happening during connection, which should contain some error. Contact your server host and show them this log and ask them to fix it for you!

6Could not resolve host api.nextendweb.com

This problem happens, when the server's firewall blocks all incoming data from external websites or if the IPV6 is mis-configured on the server. Get in touch with your host and ask them to fix the problem. You can show them the previous problem's test file created log.

If they need to whitelist us, they can use the following:

• Link: https://api.nextendweb.com
• IP: 172.104.28.39

C:\Windows\TEMP is not readable

Error message

C:\Windows\TEMP is not readable

The problem on your site is that the temp folder is not readable on the given location. Make sure the temp folder has read permissions as well.

On Windows server:

1. Go to C:\Windows\
2. Right click on the Temp folder → select Properties.
3. Go to the Security tab.
4. Select the user of the server and press Edit.
5. Check full access and apply the changes.

If you're not sure how to do it, contact your host, they should be able to help.

Activation opens and closes automatically

We have received reports about having the directory of the website protected by password could cause this problem. Disabling the password protection should fix the issue.

Demo slider is not available

Error message (the number can vary):

Demo slider is not available with the following ID: http://smartslider3.com/34024

Demo sliders can only be imported to the latest version of Smart Slider. So, you probably receive this message, because your Smart Slider 3 version is outdated, and the template you're trying to import doesn't support it. Update your Smart Slider 3 to the latest version and try to import again.