The user faces this issue because the TDV services have not been stopped cleanly and the process is either hung or still active(for unknown reasons).
To resolve this issue the TDV process needs to be killed manually. Identify the process ID specific to TDV and then issue a kill command as follows.
Syntax:
kill -9 <PID>
Once this command has been executed, check the particular node's status from the Cluster tab in Web Manager and it should be displaying the correct status(DISCONNECTED).
Also, starting/restarting the TDV services should work as expected now.