https://tiles.arcgis.com/tiles/j6iFLXhyiD3XTMyD/arcgis/rest/services/CT_East_Hampton_Adv_Viewer_Basemap_04102025/MapSe
https://tiles.arcgis.com/tiles/j6iFLXhyiD3XTMyD/arcgis/rest/services/CT_East_Hampton_Adv_Viewer_Basemap_04102025/MapSeThis is a folder inside the services directory, not the server root. Trim back to /rest/services to connect to the whole server.
Stopped responding.