I have to remove the Ecp Web Site and recreate it … And i ve got this !! that’s serious????!!!!!!!!! Exchange 2013 so fresh product !!!!
After delete it
Trying to recreate the ECP
Where he find this ??????? !!!! I delete it !!!!! Rebooting the server and try again same issue !!!!
I found that the ecp is still in IIS. Delete it and try to recreate it
And it works
New-ecpVirtualDirectory -WebSiteName « Default Web Site »
set-ecpvirtualdirectory -identity « SRVEXC02\ecp (Default Web Site) » -ExternalAuthenticationMethods basic -BasicAuthentication $false -WindowsAuthentication $false -DigestAuthentication $false -FormsAuthentication $true