Yes, we have seen that problem occasionally. The thing is, that it has nothing to do with the software - but your wifi router. Sometimes it can help to restart the router.
We do have another, simpler solution. You can import at session from the backup files in iTunes.
Right-click on you iDevice and choose “Back Up”
Open Hindenburg Journalist
From the menu choose: File / import from iDevice
Now you can browse and open any session from you iDevice