Hi,
I have installed a new PC with ArcGIS Pro 3.5.4 and whenever I try to create a new Utility Network feature service with Share As Web Map I get the following error for the Utility Network:
Is the connection file using the credentials of the data owner?
It sounds like there may be a difference in the connection files between the machines. If you copy one of the connection files from the other machines to this one, does it work?