I recently set up WSJT-X V1.08 with CAT connections using TCP method. Initially WSJT-X has no trouble connecting and controlling my Flex. I can make contacts, BUT only for a few minutes before that CAT connection is lost. No error message or other indication other than WSJT's ability to control anything is lost. I can get most of the way through a JT-65 QSO, but then it loses control. I've tried resetting settings, changing ports, deleting and adding back in CAT entities in SmartCAT with no success. No problem with other apps using CAT/TCP.