问题
I am new to birt and would like to see if it meets our reporting needs. I am trying to use BIRT from my Windows 7 laptop to create a report which accesses a MySQL database. I am using the com.mysql.jdbc.Driver driver and connecting to the mysql database using the URL: jdbc:mysql://servername:3306/databasename and the test connection is successful and event previewing the data from the Data Set is successful but when I try and run the report I get the error
Network Error (tcp_error) A communication error occurred: "Operation timed out"
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.
Has anyone seen this before and if so, how do I overcome this?
回答1:
Another solution Open the Configuration Panel, Network connections. Select the network connection that's giving you troubles. Right click on it, select properties. Remove QOS service. Check the TCP/IP settings: if they're setup by DHCP, leave things as they are. If not, write down all information in that screen and change it to DHCP. Reboot and you should be on your way
来源：https://stackoverflow.com/questions/18650239/how-to-get-rid-of-network-errortcp-error-in-birt