When you try to connect a Windows Remote Access client
to a Windows Remote Access Service (RAS) server, you may see the following
Error connecting to <computer name>
Checking network protocol connections...
reported error 733: the PPP control protocol for this network protocol is not
available on the server.
One of the following may be true about either your RAS
configuration or the TCP/IP protocol on your RAS server:
- Your RAS client dialed in requesting the TCP/IP protocol,
but you did not select the TCP/IP option in the Server Settings option in
Network Configuration for Remote Access Setup.
- In Server Settings for Remote Access Setup mentioned above,
if you did select the TCP/IP protocol, and in the TCP/IP Configure option, you
also selected the "Use DHCP to assign remote TCP/IP client addresses." But the
DHCP server is either not installed, the DHCP service is disabled in the
Services option of Control Panel, or the RAS server for some reason could not
obtain a lease from the DHCP server.
- You have chosen to "allow clients running" the TCP/IP
protocol in the RAS Server Settings, but some or all of the bindings for the
TCP/IP protocol have been disabled in the Bindings tab of the Network dialog of
the Control Panel on the RAS server. Or, alternatively the TCP/IP bindings may
have become corrupted.
To overcome the error 733, you may have to apply one or
more of the following workarounds:
- Ensure that the TCP/IP protocol is installed on your RAS
server and that the TCP/IP protocol is selected in the Server Settings of the
Network Configuration option of the Remote Access Setup dialog.
- If you have the "Use DHCP to assign remote TCP/IP client
addresses" option selected for the TCP/IP protocol in the RAS Server Settings,
then ensure that you have installed DHCP and that it is not disabled.
- Ensure that all of the bindings for TCP/IP are enabled in
the Bindings tab of the Network dialog of the Control Panel. Be sure to inspect
the TCP/IP Protocol and WINS Client(TCP/IP) bindings for all adapters, all
protocols, and all services. If the TCP/IP bindings are corrupt, you may have
to reinstall TCP/IP and or RAS in order to clean up the bindings.
: If the TCP/IP bindings are only partially disabled, you may
still be able to connect with TCP/IP over PPP without an error, but you may
only have limited functionality over the connection. This will depend on which
TCP/IP bindings are disabled.
If you are using Windows NT 3.5 or 3.51 for your RAS
server, and you select the "Use DHCP to assign remote TCP/IP client addresses"
in the RAS Server TCP/IP Configuration, then you may see this error on the
screen after failing to connect over PPP:
connecting to <computer name>
TCP/IP CP reported error 736:
The remote computer terminated the control protocol.
Along with this
error, you will see the following error in the Event Log of the Windows NT 3.5
or 3.51 RAS server:
Event ID 20091
The Remote Access Server was unable to acquire an IP address
from the DHCP Server to be used on the Server Adapter. Incoming user will be
unable to connect using IP.
For additional information about this error message, click
the article number below to view the article in the Microsoft Knowledge Base:
Error Message: TCP/IP CP Reported Error 733
Article ID: 168720 - Last Review: February 27, 2007 - Revision: 3.2
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Professional Edition
- Microsoft Windows 2000 Datacenter Server
- Microsoft Windows NT Workstation 3.5
- Microsoft Windows NT Workstation 3.51
- Microsoft Windows NT Workstation 4.0 Developer Edition
- Microsoft Windows NT Server 3.5
- Microsoft Windows NT Server 3.51
- Microsoft Windows NT Server 4.0 Standard Edition