Event ID 4308 — NBT Connectivity

Applies To: Windows Server 2008 R2

NBT (NetBIOS (network basic input/output system)) over TCP/IP (Transmission Control Protocol/Internet Protocol) connectivity facilitates file and printer sharing.

Event Details

Product: Windows Operating System
ID: 4308
Source: netbt
Version: 6.1
Message: Initialization failed because the transport refused to open initial connections.


Initialize NBT protocol

To initialize the NBT protocol, disable and then re-enable the network adapter:

You must be logged on as an administrator or belong to the Administrators group to complete these steps.

  1. Click Start, click Control Panel, double-click Device Manager, expand Network Adapters, right-click the adapter you want to initialize, click Disable, and then click Yes.
  2. Right-click the adapter that you just disabled, and then click Enable.


Attempt to access a remote shared network folder. If you can access the shared network folder, then the Windows Internet Name Service (WINS) server and the NBT protocol are functioning properly.

NBT Connectivity