[CA] NO GPS Fix

[bradaspin]

Hi, we are having issues were the network fails to find GPS fix.
Items affected include data from ITC5.

When on the master MFD I sercah for data devices the following message appears:

the following devices are preventing data source selection:
ISO(2e b3 68 e7 20 be a0 c0 ) CAN(105)
ISO(b5 83 6c e7 00 96 96 c0 ) CAN(1)
Please see your user manual for details.

System includes:
2 x e7 MFD (circa 4 years old)
3 x i70s displays (3 months old)
EV-100 tiller kit (3 months old)
GPS RS130 (8 years old)
ITC5 with below connected (2 Months old)
Wind and depth transducers (8 years old)
ST800 transducer (1 month old)

The whole system since installing the latest gear has been working fine until the past 2 weeks. Software has been updated for all devices.

Any information of a remedy would be appreciated.