CANNOT USE TERAWURFL

Changed and still the same

Did you restart webserver after change?

Sorry man i hadnt but just did and same issue.. what a pity!

Look at your error_log for any error related to mysqli.

It is very long time I have dealt with raw MySQL. But I know there exist LOAD DATA command which is exactly designed to import data fast.

dev.mysql.com/doc/refman/5.1/en/load-data.html

Trying to import large datasets over HTTP is broken by design, but this could be work around if it's not compression issue.