TZT16F Rebooting

[LLMARINE01]

Having issue on system with TZT16F and TZTL15F with TZT16F rebooting.
Original issue with system was both units rebooting and NAVPILOT 300 overloading.
NAVPILOT 300 was repaired by Furuno and new FAP-3011 installed. Completed configuration, dockside and sea trial.
Connected to NMEA 2000 and Ethernet network. Power 13 plus volts. Checked and replaced questionable components on NMEA network.
Factory reset both units and started from scratch with configuration and setup.
Updated all components on system to latest firmware versions. System has the following components:
Furuno DRS2D NXT / DRS4D NXT Radar
Furuno PG-700 Heading Sensor
Furuno NAVPILOT 300 w/ FAP-3011 Controller
Furuno GP330B GPS Receiver
Furuno Ethernet HUB 101
Fusion radio and Furuno BBWX4 Sirus XM Weather receiver.

Sirus XM does not have an active subscription.
When initially checking the Sirus function on TZTL15F. The preview channel played preview music and advertisements. Went to channel Zero (0) to get radio ID.
After this could not get back to preview channel. A MUTED SPEAKER symbol came up on screen, would not clear and would not allow channel to be changed back to preview channel.

Any ideas on how to troubleshooting and resolve this issue are appreciated.

 

[Quitsa]

Is the reboot triggered by anything in particular or just seems to happen spontaneously? The usual process is to take stuff off the network one device at a time to isolate the issue.

 

[LLMARINE01]

The only thing that stood out was the Sirus XM issue.

 

[Titanic II]

touch on the mute symbol, it will take it out of muted audio and the icon will clear.