Troubleshooting PHP/Soap based retrieval of web services data.
Synchronization of data from .NET based web service to PHP based web site has been functioning but is now failing. No code changes have been made since last successful synchronization.
These .NET web services are are presented from a US server and calls to the endpoints of these web services from the European server (Linux/MySQL) have been developed in PHP/Soap. The European server is accessible via FTP, SSH and Plesk where cron tab functionality is enabled.