Guzzle request failing depending on the network I am connected, - guzzle

Question

I am using guzzle to make request to my subdomain api.domain.com.
On the same phone hotspot. When I am at home, my guzzle request needs to have www.api.domain.com but anywhere near work, it takes api.domain.com and failed with the www. I can't figure why, this is happening.
Here's my code. Sometimes it works like that without any issue.
$client = new GuzzleHttp\Client([
'base_uri' => 'https://api.domain.com',
'timeout' => 10
]);
In my controllers
$get = $this->client->request('GET','/dashboard', [
'timeout' => 0,
'headers'=>[
],
'form_params'=> ['param'=>$param]
]);
But when I change locations and it doesn't work. I need to modify it by adding the www
$client = new GuzzleHttp\Client([
'base_uri' => 'https://www.api.domain.com',
'timeout' => 10
]);
my controllers stay the same and it works
$get = $this->client->request('GET','/dashboard', [
'timeout' => 0,
'headers'=>[
],
'form_params'=> ['param'=>$param]
]);
I get a guzzle cUrl error 6
My .htaccess looks like this in my api. I am not that knowledgeable with htaccess so do correct me if I made a mistakes.
RewriteCond %{REQUEST_URI}::$1 ^(/.+)/(.*)::\2$
RewriteRule ^(.*) - [E=BASE:%1]
RewriteCond %{HTTP:Authorization} ^(.*)
RewriteRule .* - [e=Authorization:%1]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [QSA,L]
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP_HOST} ^www\.api.domain\.com [NC]
RewriteRule (.*) https://api.domain.com/$1 [L,R=301]

Answer 1

Disable verifying SSL
$this->client = new GuzzleClient(['defaults' => [
'verify' => false
]]);
Did you try it ?

Answer 2

At the end of the day, it was a issue in the server configuration that the company made.
Sorry for bothering you with this issue.