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Security Network Layer (SNC) error on SAPgui login attempt


I am trying to log in to SAPgui and getting an error:

Security Network Layer (SNC) error


This error message can indicate a number of things.

For the following circumstances

  • Kerberos is already installed.
  • The error persists even after getting a ticket directly in Kerberos.

The error can sometimes be resolved by deleting any old desktop shortcuts, and launching the application directly from Start>>Programs>>SAP Frontend>>Production.

If this works, the desktop shortcut can be re-created from the start menu entry.

If this does not resolve your situation, contact the Help Desk for further troubleshooting assistance.

IS&T Contributions

Documentation and information provided by IS&T staff members

Last Modified:

April 29, 2015

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