I open 3 IE to run the same asp file. The dll function is called 40 times looping per each time in that asp file. (That dll function executed a stored procedure.) They are running ok in many many times, again and again. But, one IE of them, it loops to 19 times and the status is running. At the end, that page is timeout. But, the connection still exists in the Oracle. Then, I open another new IE to run, it can still run ok. Do you know why happen? Is it that one thread control one IE? If the thread is dead, the IE also cannot run? How can I debug or log this event in the server? Thanks.