Database connection faulted_MS SQL

MS SQL database keeps faulted out when I only run one designer.

Version: 8.0.10 (b2020031912)

The TCP/IP connection to the host, port 1333 has failed. Error: “connect timed out. Verify the connection properties. Make sure that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port. Make sure that TCP connections to the port are not blocked by a firewall.”.

The error is trying it’s best. Have you gone through the KBA?