Web Service and System Message Busy

Hi

 

I have a page with a list in the sb1 and a web service in c sharp .net. When the page load I call the web service to get the list that I want to show in SB1. In that moment I get the System Message Busy. I use this code to call the web service:

 

http://oi61.tinypic.com/nq1x5z.jpg

 

Someone know how to extend the timeout time or how to block this message?

 

Regards