Sitemap Generator Forum

I'm running this on a Windows server 2012 for the first time and keep getting the following error message:

HTTP Error 500.0 -....
The FastCGI process exceeded configured request timeout.

The server settings at present are:
Activity timeout 600 , Idle timeout 300, Queue length 1000, Rapid Fails per minute 10, Request timeout 600

Instance MaxRequests 10000

PHP 7.3.21

Can someone please advise what settings are needed to run the generator for a large website ?

Thanks

I've just increased both to 9000 as per this post

https://www.xml-sitemaps.com/forum/index.php/topic,5691.msg19054.html#msg19054