Hi
The program requires an almost constant connection to Betfair. If you think of 20 requests per second all the while the program is running you can understand the need for a stable and uninterrupted connection. If you are "out of the office" frequently, it would be much better to run your triggers on a VPS and check in to the VPS using the hotel wifi on your iPad / laptop etc.
Regarding the specific trigger that is not showing in the logs, it would be good if you can post it to be able to check it out, but making a guess it could be that it never completes so as to write the results to the log. Is it a repetitive trigger? Are you visiting a country where Betfair restricts certain markets/data, is the wifi connection slow enough to start queuing the data requests needed to service your triggers etc...