web scheduler - Error on Load properties from configuration manager

SUGGESTED

Hi Guys,

Hope you can help with this, we are trying to install Web-Scheduler 2023 U1 (graphQL version) as a brand new install. We have gone through all the pre-requisites including creating self signed certificate and installing latest sage services and the install goes though without errors until we get this message:

We have tried browsing directly from IIS, but get the following error:

we have restarted server, tried different browsers, ports etc, with no luck. Any ideas on this?