Two 800ah Victron battery banks with Quattro, VE.Bus.BMS, CCGX control on N2K. We are having an issue setting the device Instance for the CCGX. We contacted Maretron and we are both in agreement that because the CCGX acts as a gate way to the N2K unless we can change the Device instance only one battery bank will show information to the N2K network. We have tried with N2K analyzer and with Actisence Software to change the Device Instance with no avail. When selecting the device instance on network page the number changes but soon as you hit enter it reverts back to 0. We have a large system and maybe this is cause a problem. We have tried several configurations to change the Device Instance but nothing has worked.