Furuno Mfd8 no gps detected

[Kodi0026]

Need help troubleshooting this issue: Please note this was working last year,removed MFD8 over the winter. Installed back for the season, my MFD8 Ver 2.11 with GP330B GPS has no signal. The icon top right of screen has the red Cross through it. I tried re-seating all of the connections, nothing. The GP330B goes to cable then to nmea2000 Tee, other ends to terminator and to mfd8. I ran the install wizard without any success, Master (DHCP) Server set "ON".

What next?

Anyway to verify GP330 Functionality?

 

[Johnny Electron]

Does the antenna have clear view of the sky? If you are in a covered area, this will happen.
During storage was the GPS stored on it side or upside down? GPS antennas like radar antennas are only water protected in the upright position. Even if covered by wrapping condensation can happen and if the antenna is not upright it can get damaged.