Application team get this error once application server undergoes reboot and this gets fixed when they do application cache load. Any ideas on this error.
java.sql.SQLException: Cannot create PoolableConnectionFactory The TCP/IP connection to the host has failed. Error: "null. 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.".)