Cobra Forum

Question: Cannot create subdomain in Plesk: This website cannot be started. Another website may be using the same port


Applicable to:

• Plesk for Windows

Symptoms

• Cannot create subdomain in Plesk:

Error: This website cannot be started. Another website may be using the same port.
In Microsoft.Web.Administration module
Exception type: Microsoft.Web.Administration.ServerManagerException
at Microsoft.Web.Administration.Site.Start()
at IISWebSite.startStop(IISWebSite* , Boolean start)
at IISWebSite.start(IISWebSite* )
at setServerState(true, true)(WebServerAdapter::setServerState line 2331)
at configHosting(apiged.atoscapital.com.br)(WebServerAdapter::configHosting line 422)
at configHosting(apiged.atoscapital.com.br)(WebServerManager::configHosting line 2856)
at Unable to execute console command: '--install-vhost'(vconsoleapp::start line 95)
at Unable to execute command: '"C:\Program Files (x86)\Plesk\admin\bin64\websrvmng" --install-vhost "--vhost-config=C:/Program Files(x86)/Plesk/PrivateTemp/iah89427101.tmp"'(vconsoleapp::run line 117)

• Websites in IIS are stopped and cannot be started with the following error:

(Exception from HRESULT: 0x80070020)

Cause

Port 443 listening by another application:

c:/> stat -ano | findstr ":443"
TCP 0.0.0.0:8443 0.0.0.0:0 LISTENING 2804


Resolution

1.Connect to the server via RDP

2.Find the application that listens 443 port by its PID in Resource Monitor and stop/reconfigure it

3.Open cmd.exe as administrator

4.Restart IIS:
c:/> iisreset

5.Reconfigure webserver:
c:/> plesk repair web