LTC3350 EEPROM

Hi 

I testd LTC3350 EVM board (DC1937B) to read Super Capacitor voltage data,and encountered communication issue like as below picture

But, i copy LTC3350 GUI exe from which had downloaded it before,and this communication no longer exists

What's the problem in this case?

1. EEPROM in DC1937B is damaged?

2. FW in server doesn't exist?

Best Regards

Arthur