My Balance was originally installed in Drop in mode, now I need to remove that ISP

When I originally installed my Balance 380 I installed it in Drop In mode. Since then I added a second ISP. Now I have added a third ISP and want to drop my original one that is still in Drop In mode. What do I need to do?
Thanks

You can just go to the LAN settings page and uncheck the drop-in mode and configure the LAN as needed then save and apply changes.