IIS 7 and Above
UI & Remote Management
Remote management error. Could not connect, underlying connection clo...
Last post Mar 01, 2021 01:33 PM by elitenetdk
Feb 26, 2021 05:23 PM|elitenetdk|LINK
Suddenly on three different computers the "connect to site" in remote management doesnt work.
"Could not connect to computer
The underlying connection was closed: An unexpected error occurred on a send".
Whats going on?
I am running windows 10 enterprise 20H2.
Mar 01, 2021 02:34 AM|Brucz|LINK
It is possible that certain protocols of SSL or TLS in the server are disabled and the connection is closed. You need to check the version information of .NET and SSL or TLS being used. Then enable the correct version.
The general guideline:
Mar 01, 2021 01:33 PM|elitenetdk|LINK
Hi there Brucz
Thanks for the reply. You are right, it was a problem with the TLS.
My host issued a reg fix:
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319] "SchUseStrongCrypto"=dword:00000001 [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319] "SchUseStrongCrypto"=dword:00000001