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WinCC V5.1 - "Configured server is not available" Error

Dear User,

The "Configured server is not available" error in WinCC V5.1 typically indicates a communication issue between your client computers and the WinCC server. Here's a breakdown of potential causes and solutions:

Troubleshooting Steps:

1. Server Status: Verify the WinCC server service is running on the server machine.
2. Network Connectivity: Ensure all clients and the server are on the same network and can ping each other using IP addresses.
3. Firewall: Check firewall settings on both the server and client machines. WinCC communication ports (e.g., 80, 443, and specific runtime ports) must be open.
4. Server Configuration: In the WinCC server configuration, confirm the correct IP address and hostname are configured.
5. Name Resolution: Verify that DNS resolution is working correctly, or use the server's IP address directly in the client configuration.
6. Project Settings: Double-check the project settings on the clients to ensure they are pointing to the correct server IP address or hostname.

Important Resources:

• Siemens Support ID: 109746199 - How do you resolve the error "The configured server is not available"?
• SiePortal (for detailed documentation and FAQs): https://support.industry.siemens.com/sieportal

If the problem persists, please provide details like the network configuration and specific error messages for further assistance.

Sincerely,
Siemens Self Support