"Unable to resolve the server's DNS address" - "Unable to resolve the server's DNS address" - Alfresco - Alfresco Content Connector for Salesforce - Alfresco/Alfresco-Content-Connector-for-Salesforce/2.2/Alfresco-Content-Connector-for-Salesforce/Alfresco-Content-Connector-for-Salesforce/Using/Troubleshoot-Salesforce-Connector/Unable-to-resolve-the-server-s-DNS-address - 2.2

If you see the following message in Salesforce:

Unable to resolve the server's DNS address

Then Alfresco is unavailable. Check whether Alfresco is behind a firewall, or whether your Virtual Private Network (VPN) connection has dropped, as both these situations can cause this error.