Hum, if for more than 5 minutes there's no log (general log market) it means that there's a "problem in progress" (see the error console log, or Dos windows for BAT launch). If time is more than 30minutes, some crash has happens and it's better to restart market.

In the next version, i will give a view of Ping/Pong/Trade in progress, so you could understand what's happening