
You cannot access to the SAP system using the SAP GUI. You have checked with your colleagues and they all are able access to the same system. Whenever you tried to log on – below error coming out,

Solution
You can try on the following options,
• Restart your computer/laptop.
• Verify the localhost IP is 127.0.0.1 in the hosts file (C:\Windows\System32\drivers\etc)
• Check the SAPGUI compatibility Windows version.
• Upgrade the SAP GUI patch.
• Reinstall the SAP GUI.


