对WCF服务的连续调用返回“通常只允许使用每个套接字地址（协议/网络地址/端口）127.0.0.1:10111”

I have developed a little mashup site. This site is complete with a community. So when the user goes to the Community.aspx page he/she will see the members of the community with joined date,number of comments, name, etc.etc. and ofc paging as well. There are like 15 users per page. Now my problem is that i have 2 types of users on my site "Traditional Users" and "Open ID" users. Ofc i have 2 Roles defined in the Asp. Net membership namely "OpenIDUser" and "User". I have developed a little mashup site. This sit