DontPush - was working, now broken

Not along ago I added DontPush support to my test app. It worked fine. Recently it stopped working. After the yellow spinner spins for a few seconds I always get "Ooops..
Connection to server appears to be broken......". I have tried recompiling, reinstalling, rebooting, and reverting my code but nothing works. Don't know what else to try or what could possibly have changed. Any suggestions?

BTW: I see here http://code.google.com/p/dontpush/issues/detail?id=13 that someone else had a similar experience -- worked, then stopped working. I'm still waiting for mine to spontaneously start working. Maybe I have to let it rest a month ;-)

--jon

[Note: I reposted this to a more appropriate group -- add-ons. https://vaadin.com/forum/-/message_boards/view_message/1547024]