Readbyrow is working guruxDirector but not in .net code example

Hi Mikko,

We are trying to read the block data (1.0.99.1.0.255) from the Smart Meter using optical prob. While using Director it works but the same is not working with .net example. have taken updated version of Gurux.

This is smart meter is CMS make with kalkitech meter software. We are using use of invocation counter. by passing it we pass higher number than the previous.
below is additional setting we pass.

client.Ciphering.SystemTitle = Encoding.ASCII.GetBytes("******");
client.Ciphering.BlockCipherKey = Encoding.ASCII.GetBytes("*********");
client.Ciphering.AuthenticationKey = Encoding.ASCII.GetBytes("********");
client.Ciphering.Security = Security.AuthenticationEncryption;
client.Ciphering.SecuritySuite = Gurux.DLMS.Objects.Enums.SecuritySuite.Suite0;

while reading it through error "access error : device reports read-write denied."

Kindly suggest.