'IHostedService not running on IIS 10

I have a ASP.NET Web-API which has a IHostedService to periodically execute a specific Task (fetch data from another website and write it to the Database).

This works well on IIS-Express (starting from inside VisualStudio)

But when publishing the API to either my local IIS or the IIS of my external provider, the IHostedService doesn't start.

in my startup.cs: services.AddHostedService<QuartzHostedService>();

I tried adding values to the Database manually when calling a specific Path, so that's not the problem. It has something to do with IIS i guess. Problem is, I don't have access to the external providers IIS configuration. Everything i found online showed some IIS configuration.. I hope someone can help.



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