WCF services and silverlight application

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SQL

WCF

Silverlight4

I am trying to Host a web application using silverlight.
So far i have designed webpage and added Linq- Sql database in the project.
what i have got on webpage is few textbox and submit button. what i am doing is when someone press submit it stores data from textbox .everything seems to be working fine if i am running website from the same computer i have hosted.

Now, What i want to do is i have another computer over LAN i can open same website ( since i am hosting is using IIS) i can see website i can access it but when i press submit button it doesnot do anything on database( database is not being updated). i have also added service reference and clientaccesspolicy.


if anyone have idea what i am doing wrong? or what i should do ? please reply thank you

Regards,
Mohit