E_RPC_ServerFault exception when i am querying SDEFeatureClass.

[srinivasreddy]

I am querying 100 SdeFeatureclasses Inside a for loop using a Polygon using following code.

//This List of SDE.FeatureClases..
List<string> FeatureClassList=GetFeatureClasses();

Ex:

for(int i=0;i<FeatureClassList.Count;i++)
{
    ISpatialFilter pspQuery=new SpatialFilterClass();
    pspQuery.Geometry=myGeom;
    pspQuery.spatialRel=esriSpatialRelEnum.SpatilRelIntersects;    
    PFeatureClass=PworkSpacefactory.OpenFeatureClass(FeatureClassList)
    
    int Count=PFeatureClass.FeatureCount(pspQuery);   
}

When Query Reaches to 25th FeatureClass it, is showing
E_RPC_SERVERFAULT Exception......
Do i have to Change any configuration settings in sde connection files.
Here i am using PropertySetCLass Only.....

ThankS
SRI