Oops! What does your Gateway say its current settings are? What is your layout, e.g. similar to what @GWord posted above?Today I saw what happens when you exceed this limit. I noticed that my solar production had gone to zero and when I when to look at the alerts it came back with max panel current error. I happen to be running a lot of loads with both AC units running, so I did exceed 100A for a bit. I have 200A service, but I assume because PW+Solar can send up to 60A back into the panel they set this limit as the max you can pull from the grid before shutting down the solar.
All the best,
BG