XW Pro Generator Issues or Inverter Issues?

Have been off grid with for the past three years using Schneider products.  Fired up the generator for the first time this season and the XW Pro 6848 Inverter started acting strange.  In the past it would only accept the running watts of the generator, around 4kw.  This time it tried to pull 6kw.  I'm not sure if the generator shut off or the Inverter killed the power but it tried three times then wouldn't connect again.

I disconnected generator power to clear the fault in the Inverter so I could try again.  I logged into the Gateway to look at the settings and things looked different then I remembered.  The layout had changed a little and there were new settings that I don't remember setting in the past.  I'm assuming the system upgraded.  I did to a firmware update but I believe that was before last winter.  I reset the generator parameters for the incoming power.  The Amps was changed to 30 when it was 20 in the past which is why I think it was trying to pull more power then before.

I started the generator again and watched the readings and noticed that the 120V legs coming from the generator were not equal.  One was lower and the other higher but the total was still 240V.   The difference was 10-15V.  I called Schneider and was told that this was the problem.  I then called Champion who makes the generator and was told to replace the bushings and voltage regulator.  They also sent me instructions to adjust the voltage and hertz.  I ordered the parts and made sure the Hertz was 60 and voltage was 240.  I then started the generator and checked the voltage per leg from the generator plug and at every stop between it and the Inverter.  All read 120V per leg so no issues there.

This told me that the Inverter was the problem.  I started the generator again and the voltage was still off per leg the same 10-15V.  I let the Inverter qualify the power and it did connect but had a electrical grinding noise so I killed the generator power.

I have two XW Pro 6848 Inverters. One has been disconnected for over a year because I could never get the two inverters to cooperate.  I was always getting errors, even Schneider and the company I purchased the system from couldn't figure it out.  Since never use more than the output of one inverter I disconnected the slave inverter and have been keeping it as a backup.

I tried to hook up the fire up the Slave inverter to change it to the Master inverter but ran into an ER66 Configuration Fault, one of the errors I had back when trying to run dual inverters.  Because of this I couldn't get into the settings to switch from Slave to Master.  I tried only having teh Slave on and having both the Slave and Master on but couldn't get in.

Next a loud beep went off and the system shut down giving an ER56 EEPROM Error (Strings Fail).  At that point I quit trying and unhooked the communication cables between the two inverters.  I restarted the Master and it was working fine.  We've had a whole week of clouds and rain so it's been a challenge. I've had to run the generator in bypass mode to run the house basically all day and let what little solar that came in to charge the batteries. 

We made it but during this time period the Master has given the same ER56 EEPROM Error (Strings Fail) everytime I switch back to inverter power for the night.  I'd turn off bypass and the inverter would start working as normal but then maybe 5-15 minutes in it would beep again, show the ER56 and shut off.  I'd turn it back on and it would then work fine all night but would not show up in the Gateway anymore.  I knew it was working because we had power and the Gateway showed the SOC and such but the inverter showed Off Line.

I've been emailing NAZ for a week not and they're not helping AT ALL...thanks for the let down.  Haven't heard anything from them, very very disappointing.  I'm been on hold with Schneider now for almost 90 minutes and decided to try some forums.  Any advice would be great.