Richard,

 

Server side :

 

Make sure your application do not redirect the CuteSoft_Client/CuteChat/SupportService.asmx

(For example , of you use Forms auth , do not use <deny users='?'/> for that file )

 

Operator side :

 

try to add this to configuration file :

 

<configuration>

<system.net>

<settings>

            <servicePointManager expect100Continue="false" />

</settings>

</system.net>

</configuration>

 

Regards,

Terry