UPS shipping error

Question

This night I ran into the problem that the UPS method stopped working.

The error on the front-end: "This shipping method is currently unavailable. If you would like to ship using this shipping method, please contact us."
https://prnt.sc/ncv1mr

By enabled debug for UPS method I got next logs:

[2019-04-16 18:55:13] main.DEBUG: array (
  'request' => 
  array (
    'accept_UPS_license_agreement' => 'yes',
    '10_action' => '4',
    '13_product' => 'GNDRES',
    '14_origCountry' => 'US',
    '15_origPostal' => '44610',
    'origCity' => NULL,
    '19_destPostal' => '93906',
    '22_destCountry' => 'US',
    '23_weight' => 5.0,
    '47_rate_chart' => 'One Time Pickup',
    '48_container' => '00',
    '49_residential' => '01',
    'weight_std' => 'lbs',
  ),
  'result' => '',
) [] []

No result.
Where might be an issue?

Magento 2.2.6

Thanks.

Answer 1

Having the exact same issue on 2.1.5 and 2.1.17. Our last UPS order came through April 15th at 9pm. With no configuration change, it stopped working on April 16th.

You can possibly fix it by changing the gateway url to https rather than http So change

http://www.ups.com/using/services/rave/qcostcgi.cgi

to

https://www.ups.com/using/services/rave/qcostcgi.cgi

This fixed things on my local 2.1.5 instance, but not on my servers. It now gives a slightly better error message:

[2019-04-18 17:26:37] main.DEBUG: array (
'request' => 
  array (
    'accept_UPS_license_agreement' => 'yes',
    '10_action' => '4',
    '13_product' => 'GNDRES',
    '14_origCountry' => 'US',
    '15_origPostal' => '28146',
    'origCity' => 'Salisbury',
    '19_destPostal' => '28145',
    '22_destCountry' => 'US',
    '23_weight' => 8,
    '47_rate_chart' => 'Regular Daily Pickup',
    '48_container' => '00',
    '49_residential' => '01',
    'weight_std' => 'lbs',
  ),
  'result' => 
  array (
    'error' => 'Unable to Connect to ssl://www.ups.com:443. Error #0: ',
    'code' => 0,
  ),
) {"is_exception":false} []

EDIT:

I ended up having to edit /public_html/vendor/magento/zendframework1/library/Zend/Http/Client.php and change the adapter from Zend_Http_Client_Adapter_Socket to Zend_Http_Client_Adapter_Curl and it now works for me. I don't feel good about this solution. Can anyone tell me what else I might be screwing up?

protected $config = array(
    'maxredirects'    => 5,
    'strictredirects' => false,
    'useragent'       => 'Zend_Http_Client',
    'timeout'         => 10,
    'adapter'         => 'Zend_Http_Client_Adapter_Curl',
    'httpversion'     => self::HTTP_1,
    'keepalive'       => false,
    'storeresponse'   => true,
    'strict'          => true,
    'output_stream'   => false,
    'encodecookies'   => true,
    'rfc3986_strict'  => false
);