Hello,
It would be better to contact Creatio support regarding this issue.
Or double-check that you installed the application correctly https://academy.creatio.com/docs/8.x/setup-and-administration/on-site-d…

Hi Dmytro,

Okay, could you please share your inputs on this apart from above comments.

Bala Koteswarareddy,

Hello,

Please take a look at this article https://weblogs.asp.net/owscott/windows-8-iis-8-concurrent-requests-limit

In fact, IIS on different OS supports different numbers of concurrent connections, resulting in the fact that when the limit is reached, new requests won't be processed, the UI that sends these requests will not respond, and the Creatio Instance will be very slow/not working.

This is the only possible explanation of why this issue occurs.

@Oleg Drobina,

Thank you for your inputs.