Hi iostream212,
When MobiLinc auto-found your ISY was it able to sync up and download all your devices/scenes/programs? If it did download OK, what happened later on where you noticed it was no longer connecting to your ISY?
Any kind of connection issues indicates that there is an IP mismatch between what's in MobiLinc and your ISY, or a connection issue. Also, double-check that there isn't any spaces in the IP address or port fields at the beginning or the end of the text.
Wes