Lifeboat = help if you have a problem.
The lifeboat recovers the Internet Gate even if flash memory contents are damaged. It uses the unit's bootloader to load and install a firmware using the Ethernet interface. Read more here.
Only use the lifeboat when all other options have been considered, preferably after a direct recommendation from support.
After recovering the Internet Gate with the lifeboat you should check that you use the latest firmware:
Firmware Upgrade.
Download:
Lifeboat (ver 5.36F3)
Lifeboat (ver 5.35)
Lifeboat (ver 5.33F6)