WMS layer not shown on map

[JING-YKR]

Hi there, I have two tables in SQL Server DB, one for stops and one for routes. The goal is to show both on a map, and the routes need to display directions. I've published the routes table as a WMS service with arrows, as shown below.

In Icon Map, I brought in the stops table, and could plot it successfully using either LAT and LON or a WKT field. However, I am unable to add the WMS service to show the routes with directions. The below are what I put in.

WMS URL: https://dev-ags.yorkmaps.ca/arcgis/services/Transportation/YRT_Stops_ValidRoutes/MapServer/WMSServer?token=&SERVICE=WMS&
WMS Layer Name: 0

Can someone point me to the right direction?