You are getting the error “WSAENOBUFS: No buffer space available ” when trying to connect to an SAP system. There are ways to solve this but for further details please see SAP Note 990538.
Method 1
Restart your computer / laptop and try to connect again.
Method 2
Adjust the Windows memory parameters in Windows boot.ini by adding a “/3GB” option.
[boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS [operating systems] multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect /3GB
