Question
What are common firewall configurations that can cause Error 10035?
Asked by: USER2735
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67 Answers
Answer (67)
The most common firewall issue is blocking the port the server is listening on. Ensure the Windows Firewall (or any third-party firewall) allows inbound connections on the specific port (e.g., 1433 for SQL Server, 80 for HTTP, 443 for HTTPS). Also, check if the firewall is blocking the client's IP address from connecting to the server.