The local session table is full. The network control block (NCB) request was refused. The NCB is the data.
The NCB request was refused because the session table on the network adapter card was full.
To allow more sessions, reconfigure the NetBIOS stack by changing the SESS value of the NET<n> entry in the configuration file. If you are using NetBEUI, you may also need to change the PROTOCOL.INI file.