Hi,

Update...

Narrowed it down a bit by logging a few extra details. Below is a sample from the log showing two good and one slow set of entries for three consecutive calls to the web service page:

2004-11-01 14:45:41 81.156.109.249 UserName 192.168.0.247 80 GET /lvlink/ws/LVDeliveries.asmx wsdl 200 281
2004-11-01 14:45:41 81.156.109.249 - 192.168.0.247 80 POST /lvlink/ws/LVDeliveries.asmx - 401 281
2004-11-01 14:45:41 81.156.109.249 UserName 192.168.0.247 80 POST /lvlink/ws/LVDeliveries.asmx - 200 234

2004-11-01 14:45:43 81.156.109.249 UserName 192.168.0.247 80 GET /lvlink/ws/LVDeliveries.asmx wsdl 200 469
2004-11-01 14:45:44 81.156.109.249 - 192.168.0.247 80 POST /lvlink/ws/LVDeliveries.asmx - 401 656
2004-11-01 14:45:44 81.156.109.249 UserName 192.168.0.247 80 POST /lvlink/ws/LVDeliveries.asmx - 200 281

2004-11-01 14:45:46 81.156.109.249 UserName 192.168.0.247 80 GET /lvlink/ws/LVDeliveries.asmx wsdl 200 250
2004-11-01 14:45:46 81.156.109.249 - 192.168.0.247 80 POST /lvlink/ws/LVDeliveries.asmx - 401 282
2004-11-01 14:47:02 81.156.109.249 UserName 192.168.0.247 80 POST /lvlink/ws/LVDeliveries.asmx - 200 297

The last value in a line is the 'Time Taken'. On the last hit the time the last entry is written to the log is over a minute greater than the previous entry but the execution time taken is normal - so the delay may be in the Network between the two messages generated by the call.

What seems odd to me is that there a always a pair of these - one with no username (that, as expected, returns a HTTP 401 code) then one with a valid username (I've edited the real name for security). Don't know why a single call to the webservice generates these two entries but I see that it happens on all my web services that require authentication.

I've also had the same code calling the web service from machines on the same LAN as the server - they consistently runs fast. I'm thinking now of monitoring TCPIP traffic between the router and the webserver (unless you can suggest anything else to try) ....

Regards,
Viv