Plesk installer unable to open URL link 8447: This site can’t provide a secure connection

Created:

2016-11-16 13:25:58 UTC

Modified:

2017-08-08 13:40:42 UTC

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Plesk installer unable to open URL link 8447: This site can’t provide a secure connection

Applicable to:

  • Plesk for Windows

Symptoms

Plesk installer unable to open URL link 8447, the following error appears:

This site can’t provide a secure connection

Checking services, port 8447 is listening by system:

C:\

etstat -ano | find ":8447" TCP 0.0.0.0:8447 0.0.0.0:0 LISTENING 4 TCP [::]:8447 [::]:0 LISTENING 4

Verify that

C:\\%windir%\\system32\\inetsrv\\appcmd list site| findstr 8447
SITE "domain.tld" (id:17,bindings:http/203.0.113.2:80:domain.tld,http/203.0.113.2:80:www.domain.tld,http/203.0.113.2:80:ipv4.domain.tld,http/203.0.113.2:8447:,state:Started)

Cause

domain.tld has bindings configured on 8447/tcp was configured in listening by the website system instead of autoinstaller.

Resolution

  1. Run %windir%\\system32\\inetsrv\\appcmd list site| findstr 8447 to find a web site having Binding on 8447/tcp

    C:\\%windir%\\system32\\inetsrv\\appcmd list site| findstr 8447
    SITE "domain.tld" (id:17,bindings:http/203.0.113.2:80:domain.tld,http/203.0.113.2:80:www.domain.tld,http/203.0.113.2:80:ipv4.domain.tld,http/203.0.113.2:8447:,state:Started)
  2. Go to IIS -> Sites -> domain.tld , in the Actions pane, click Bindings ...

In the Site Bindings dialog box find and remove a binding with port 8447

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