mysql server: cannot connect

I got "cannot connect" error when I did stress test for a project we did recently. We used Apache Jmeter and there were 5 concurrent connections in a second. Initially, I thought it could be because of MySQL, becuase the first page of the project runs a lot of queries. Then I did the simple script below and start Jmeter once again. <? $conn = mysql_connect ( '10.0.1.4', 'root', '') or die("Could not connect: " . mysql_error()); mysql_select_db('lub2', $conn); $res = mysql_query("SELECT * FROM pages_lv0 WHERE id = 1", $conn) or die("Invalid query: " . mysql_error()); mysql_close($conn); ?> I got the same error again and checked MySQL server. I managed to connect to the server and noticed that it is woriking fine, but I still was unable to connect to the server via the script. I moved MySQL database to our Linux server and repeated the test. The result was the same. Then I moved the PHP script to the Linux server and run test once again. I did not get the error. I moved database back to windows, left PHP on Linux and run the test. No error. I compared settings in php.ini on both Linux and Windows and they were the same. So I conclude this is PHP bug or feature under the Windows platform. Does anyone met the same problem before? I searched for the answers in the newslist, but did not find anything related to the same type of problem. I found one post in the bugs database (and I already submited this problem as a bug), but support team said it is not a bug.