Generator Overload w/ very little load

[CasaMoreno]

First time out with the new Hike and our Ryobi 2300 generator was overloading while only running one appliance. We had not had any problem with the generator in our old trailer, running the microwave or AC. The generator has only been used a few times and is very clean still, we just confirmed that carburetor is clean. It doesn’t seem like a generator problem but perhaps a setting on the trailer? What could we be missing?