Sitecore 9: xConnect, 403 Forbidden Error

Solution

Open PowerShell as an administrator and run this command.

Get-Childitem cert:\LocalMachine\root -Recurse | Where-Object {$_.Issuer -ne $_.Subject}

This command will display all the non self signed certificate. https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.security/providers/get-childitem-for-certificate?view=powershell-6

Now time for second command

Get-Childitem cert:\LocalMachine\root -Recurse | Where-Object {$_.Issuer -ne $_.Subject} | Move-Item -Destination Cert:\LocalMachine\CA

Problem is resolved.

Happy Sitecore Development.

https://www.incitesolvents.com/