Some types of layers, such as query layers or WFS/WMS layers, cannot be uploaded. To create new named layers that will work with the Map Uploader:
Create a native TAB version of the table using the Save Cosmetic Objects
command from the MAP tab (MAP > Cosmetic > Save Cosmetic Objects).
Copy the new native table to the server. Like all other tables, the datasource must be
accessible to the server via a named connection. So put it in a location under an existing
connection or put it somewhere and create a connection to it. (to find location
connections point to open the connection's detail page in Spectrum Spatial™ Manager and look at the
"Source Folder" property).
Add the newly created layer to the MapInfo Pro
map.