Add an SAP system in NWDS and get error:

Unaccessible SAP Instance

The following SAP instance cannot be accessed at present:

[Host:,InstanceNR:]

Check if the SAP instance number is correct, the host can be accessed on the network, the sapstartsrv process is running and that the proxy settings are correct.

SAP NetWeaver Developer Studio

connecting, nwdi, NetWeaver Developer Studio , KBA , BC-DWB-JAV-J2E , NWDS JavaEE Tool Set , BC-DWB-JAV-COR , Core Frameworks , BC-DWB-JAV-DII , Development Infrastructure Integration , Problem

Visit SAP Support Portal's SAP Notes and KBA Search.