2513042 - ERR_CONNECTION_REFUSED When accessing SUM GUI | SAP Knowledge Base Article

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2513042 - ERR_CONNECTION_REFUSED When accessing SUM GUI


You are trying to access the SUM UI on Chrome.

The browser display the error page:


This site can’t be reached

<host> refused to connect.





  • SUM 1.0 SP 20
  • Chrome browser (it has been observed just in Chrome so far, but may happen in other browsers)


SAP NetWeaver all versions


ERR_CONNECTION_REFUSED, refused, connection, error, SUM, upgrade, software update manager, interface, UI, web, GUI, SL, Common, firefox, internet explorer, ie,  mozilla, edge, microsoft, google , KBA , BC-UPG-SLC , Software Logistics Controller , BC-UPG-TLS-TLA , Upgrade tools for ABAP , BC-UPG-TLS-TLJ , Upgrade tools for Java , BC-CCM-HAG , Host Agent , Problem

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