The only tablets that work with expression 2 and 3 are the Kurta XGT tablets. If you are having problems with communication, check the settings in the console and make certain that they match the tablet type and size.
If you are still having problems you may need to recalibrate the tablet to work with the expression 2 or 3 console. Instruction are attached.
Configuring the Designer's Worksheet Kurta XGT