Canada Post module

[riomaha]

Hi, I am using ZC 1.5.5 and was running Canada post 1.6. out of nowhere it is no longer able to get quotes. error "internal" which when I dug deeper says unable to reach sever and I only see that when I change from $errno>0 to $errno>=0

  function _sendToHost($data)
  {
    $url  = 'https://' . (MODULE_SHIPPING_CANADAPOST_CPCID == 'CPC_DEMO_XML' ? 'qa-' : '') . 'sellonline.canadapost.ca/sellonline/Rating';
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_TIMEOUT, 3);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3);
//        curl_setopt($ch, CURLOPT_FRESH_CONNECT, true);
    curl_setopt($ch, CURLOPT_USERAGENT, 'Zen Cart merchant at ' . urlencode(HTTPS_SERVER));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $error    = curl_error($ch);
    $errno    = curl_errno($ch);
    curl_close($ch);

    if ($errno > 0) {
      $response = '<?xml version="1.0" ?><eparcel><error><statusMessage>' . MODULE_SHIPPING_CANADAPOST_COMM_ERROR . ($errno != 0 ? '<br /><strong>' . $errno . ' ' . $error . '</strong>' : '') . '</statusMessage></error></eparcel>';
    }
    return $response;
  }

I tried the updated version too 1.6.1 and still getting the same error.
I did try curl from terminal of that server "curl https://sellonline.canadapost.ca/sellonline/Rating" and I get method not allowed which is normal since I used et method.

Is anyone else experiencing this? not sure how to fix it.