It is very complicated and it is hard to reproduce the problem without your solution or code. Probably the problem is in a conversion data to WKB format.
When the SqlGeospatialDataReader.GeospatialPropertyName property specifies a property which represents Geospatial data in a the binary type (byte), then it will be read as Wkb. I have attached a sample solution which uses Geospatial data in the WKB format.
Note, that the 'StateCountiesWKB' view which is used in the database model uses the Geometry.STAsBinary() function of MSSQL to get the Geometry field in WKB format.
I hope it helps.
the Telerik team
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