Authentication failed. Either you have cancelled the authentication or Google re

Solved. Disable line
curl_setopt($ch, CURLOPT_USERAGENT, $this->curl_useragent ); in file wordpress-social-login/hybridauth/Hybrid/thirdparty/OAuth/OAuth2Client.php

• This reply was modified 7 years, 7 months ago by ckanza.

I am facing same problem “Authentication failed. Either you have cancelled the authentication or Google refused the connection.” Please help me out.

Thanks in advance

My solution was to:

1) file in hybridauth/Hybrid/Providers/Google.php , replaced:

$this->api->token_url = "https://accounts.google.com/o/oauth2/token";

by:

$this->api->token_url = "https://www.googleapis.com/oauth2/v4/token";

2) file in hybridauth/Hybrid/thirdparty/OAuth/OAuth2Client.php , replaced:

if($params) curl_setopt( $ch, CURLOPT_POSTFIELDS, $params );

by:

			if($params) {
                            curl_setopt( $ch, CURLOPT_POSTFIELDS, http_build_query($params) );
                            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded'));
                        }

That worked in my case. Good luck.

• This reply was modified 7 years, 6 months ago by fariazz.

@fariazz your solution is not working now. What can be done now?

• This reply was modified 6 years, 8 months ago by techaddict.

No, still occurs the same problem in 2.3.3.