While working with Silverlight-WCF many time we come across error ……….
“The HTTP request to <URL to WCF Service> has exceeded the allotted timeout. The time allotted to this operation may have been a portion of a longer timeout.”
This may be due to speed of server or database operations taken in WCF Service .so to deal with this error we can set time in web.config file.
Below is code for it…
1) In Web.Config
<httpRuntime executionTimeout="600" />
2) In Web.Config Binding Elements

Akshay DalviPosted Nov 29, 2011, 12:41 AM
I found this helpful. keep posting.