I have an ERP using the magento SOAP API v2 (http://www.example.com/api/v2_soap/?wsdl). Through my local server, crons access every minute the API and synchronize data.
Everything always worked very well until one day just stopped working, firing the error:
Symfony\Component\Debug\Exception\FatalErrorException: SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://www.example.com/api/v2_soap/?wsdl' : failed to load external entity "http://www.example.com/api/v2_soap/?wsdl"
When worked, this error happened a few times an hour, but now it always happens.
My server is a ubuntu 16.04 and use the laravel framework 5.2.
The big problem is that if I access the api in my local server by curl for example, everything works, but with cron stopped working.
I know there are many questions on this subject, but none solved my problem.
Thanks.