List of Error Codes that you may receive when you try to make a dial-up connection or a VPN connection in Windows Vista

Support for Windows Vista without any service packs installed ended on April 13, 2010. To continue receiving security updates for Windows, make sure you're running Windows Vista with Service Pack 2 (SP2). For more information, refer to this Microsoft web page: Support is ending for some versions of Windows

INTRODUCTION

This article lists the Error Codes that you may receive when you try to make a dial-up connection or a VPN connection on a computer that is running Microsoft Windows Vista.

More Information

The following list contains the Error Codes that you may receive when you try to make a dial-up connection or a VPN connection:



600

An operation is pending.



601

The port handle is invalid.



602

The port is already open.



603

Caller's buffer is too small.



604
Wrong information specified.



606

The port is not connected.



608

The device does not exist.



609

The device type does not exist.



610

The buffer is invalid.



612

The route is not allocated.



615

The port was not found.



616

An asynchronous request is pending.



617

The port or device is already disconnecting.



618

The port is not open.



619

The port is disconnected.



621

Cannot open the phone book file.



622

Cannot load the phone book file.



623

Cannot find the phone book entry.



624

Cannot write the phone book file.



625

Invalid information found in the phone book.



627

Cannot find key.



628

The port was disconnected.



629

The port was disconnected by the remote machine.



630

The port was disconnected due to hardware failure.



631

The port was disconnected by the user.



632

The structure size is incorrect.



633

The port is already in use or is not configured for Remote Access dialout.



Note In this error message, the word "dialout" is a misspelling for the words "dial out."

635

Unknown error.



636

The wrong device is attached to the port.



638

The request has timed out.



645
Internal authentication error.



646

The account is not permitted to log on at this time of day.



647

The account is disabled.



648

The password has expired.



649

The account does not have Remote Access permission.




651
Your modem (or other connecting device) has reported an error.



652

Unrecognized response from the device.



653

A macro required by the device was not found in the device .INF file section.



654

A command or response in the device .INF file section refers to an undefined macro



655

The <message> macro was not found in the device .INF file section.



656

The <defaultoff> macro in the device .INF file section contains an undefined macro



657

The device .INF file could not be opened.



658

The device name in the device .INF or media .INI file is too long.



659

The media .INI file refers to an unknown device name.



660

The device .INF file contains no responses for the command.



661

The device .INF file is missing a command.



662

Attempted to set a macro not listed in device .INF file section.



663

The media .INI file refers to an unknown device type.



664

Cannot allocate memory.



665

The port is not configured for Remote Access.



666

Your modem (or other connecting device) is not functioning.



667

Cannot read the media .INI file.



668

The connection dropped.



669

The usage parameter in the media .INI file is invalid.




670

Cannot read the section name from the media .INI file.



671

Cannot read the device type from the media .INI file.



672

Cannot read the device name from the media .INI file.



673

Cannot read the usage from the media .INI file.



676

The phone line is busy.



677

A person answered instead of a modem.



678

There is no answer.



679

Cannot detect carrier.



680

There was no dial tone.



691

Access denied because username and/or password is invalid on the domain.



692

Hardware failure in port or attached device.



693

ERROR NOT BINARY MACRO



694

ERROR DCB NOT FOUND



695

ERROR STATE MACHINES NOT STARTED



696

ERROR STATE MACHINES ALREADY STARTED



697

ERROR PARTIAL RESPONSE LOOPING



698
A response keyname in the device .INF file is not in the expected format.



699

The device response caused buffer overflow.



700

The expanded command in the device .INF file is too long.




701

The device moved to a BPS rate not supported by the COM driver.



702

Device response received when none expected.



703

ERROR INTERACTIVE MODE



704

ERROR BAD CALLBACK NUMBER



705

ERROR INVALID AUTH STATE



707

X.25 diagnostic indication.



708

The account has expired.



709

Error changing password on domain.



710

Serial overrun errors were detected while communicating with your modem.



711

RasMan initialization failure. Check the event log.



713

No active ISDN lines are available.



716

The Remote Access IP configuration is unusable.



717

No IP addresses are available in the static pool of Remote Access IP addresses.



718

PPP timeout.



720

No PPP control protocols configured.



721

Remote PPP peer is not responding.



722

The PPP packet is invalid.



723

The phone number, including prefix and suffix, is too long.



726

The IPX protocol cannot be used for dial-out on more than one port at a time.




728

Cannot find an IP adapter bound to Remote Access.



729

SLIP cannot be used unless the IP protocol is installed.

730

Computer registration is not complete.



731

The protocol is not configured.



732

The PPP negotiation is not converging.



733

The PPP control protocol for this network protocol is not available on the server.



734

The PPP link control protocol terminated..



735

The requested address was rejected by the server.



736

The remote computer terminated the control protocol.



737

Loopback detected.



738

The server did not assign an address.



739

The remote server cannot use the Windows NT encrypted password.



740

The TAPI devices configured for Remote Access failed to initialize or were not installed correctly.



741

The local computer does not support encryption.



742

The remote server does not support encryption.



749

ERROR_BAD_PHONE_NUMBER



752

A syntax error was encountered while processing a script.



753

The connection could not be disconnected because it was created by the multi-protocol router.



754

The system could not find the multi-link bundle.



755

The system cannot perform automated dial because this connection has a custom dialer specified.



756

This connection is already being dialed.



757

Remote Access Services could not be started automatically. Additional information is provided in the event log.



764

No smart card reader is installed.



765

Internet Connection Sharing cannot be enabled. A LAN connection is already configured with the IP address that is required for automatic IP addressing.



766

A certificate could not be found. Connections that use the L2TP protocol over IPSec require the installation of a machine certificate, also known as a computer certificate.



767

Internet Connection Sharing cannot be enabled. The LAN connection selected as the private network has more than one IP address configured. Please reconfigure the LAN connection with a single IP address before enabling Internet Connection Sharing.



768

The connection attempt failed because of failure to encrypt data.



769

The specified destination is not reachable.



770

The remote computer rejected the connection attempt.



771

The connection attempt failed because the network is busy.



772

The remote computer's network hardware is incompatible with the type of call requested.



773

The connection attempt failed because the destination number has changed.



774

The connection attempt failed because of a temporary failure. Try connecting again.



775

The call was blocked by the remote computer.



776

The call could not be connected because the remote computer has invoked the Do Not Disturb feature.



777

The connection attempt failed because the modem (or other connecting device on the remote computer is out of order.



778

It was not possible to verify the identity of the server.




780

An attempted function is not valid for this connection.



782

Internet Connection Sharing (ICS and Internet Connection Firewall (ICF cannot be enabled because Routing and Remote Access has been enabled on this computer. To enable ICS or ICF, first disable Routing and Remote Access. For more information about Routing and Remote Access, ICS, or ICF, see Help and Support.



783

Internet Connection Sharing cannot be enabled. The LAN connection selected as the private network is either not present, or is disconnected from the network. Please ensure that the LAN adapter is connected before enabling Internet Connection Sharing.



784

You cannot dial using this connection at logon time, because it is configured to use a user name different than the one on the smart card. If you want to use it at logon time, you must configure it to use the user name on the smart card.



785

You cannot dial using this connection at logon time, because it is not configured to use a smart card. If you want to use it at logon time, you must edit the properties of this connection so that it uses a smart card.



786

The L2TP connection attempt failed because there is no valid machine certificate on your computer for security authentication.



787

The L2TP connection attempt failed because the security layer could not authenticate the remote computer.



788

The L2TP connection attempt failed because the security layer could not negotiate compatible parameters with the remote computer.



789

The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer.



790

The L2TP connection attempt failed because certificate validation on the remote computer failed.



791

The L2TP connection attempt failed because security policy for the connection was not found.



792

The L2TP connection attempt failed because security negotiation timed out.



793

The L2TP connection attempt failed because an error occurred while negotiating security.



794

The Framed Protocol RADIUS attribute for this user is not PPP.



795

The Tunnel Type RADIUS attribute for this user is not correct.



796

The Service Type RADIUS attribute for this user is neither Framed nor Callback Framed.



797

A connection to the remote computer could not be established because the modem was not found or was busy. For further assistance, click More Info or search Help and Support Center for this error number.


798

A certificate could not be found that can be used with this Extensible Authentication Protocol.



799

Internet Connection Sharing (ICS cannot be enabled due to an IP address conflict on the network. ICS requires the host be configured to use 192.168.0.1. Please ensure that no other client on the network is configured to use 192.168.0.1.



800

Unable to establish the VPN connection. The VPN server may be unreachable, or security parameters may not be configured properly for this connection.



801

This connection is configured to validate the identity of the access server, but Windows cannot verify the digital certificate sent by the server.



802

The card supplied was not recognized. Please check that the card is inserted correctly, and fits tightly.



803

The PEAP configuration stored in the session cookie does not match the current session configuration.



804

The PEAP identity stored in the session cookie does not match the current identity.



805

You cannot dial using this connection at logon time, because it is configured to use logged on user's credentials.


806

A connection between your computer and the VPN server has been started, but the VPN connection cannot be completed. The most common cause for this is that at least one Internet device (for example, a firewall or a router) between your computer and the VPN server is not configured to allow Generic Routing Encapsulation (GRE) protocol packets. If the problem persists, contact your network administrator or Internet service provider.


807

The network connection between your computer and the VPN server was interrupted. This can be caused by a problem in the VPN transmission and is commonly the result of internet latency or simply that your VPN server has reached capacity. Please try to reconnect to the VPN server. If this problem persists, contact the VPN administrator and analyze quality of network connectivity.



808

The network connection between your computer and the VPN server could not be established because the remote server refused the connection. This is typically caused by a mismatch between the server's configuration and your connection settings. Please contact the remote server's Administrator to verify the server configuration and your connection settings.






809

The network connection between your computer and the VPN server could not be established because the remote server is not responding. This could be because one of the network devices (e.g., firewalls, NAT, routers, etc.) between your computer and the remote server is not configured to allow VPN connections. Please contact your Administrator or your service provider to determine which device may be causing the problem.



810

A network connection between your computer and the VPN server was started, but the VPN connection was not completed. This is typically caused by the use of an incorrect or expired certificate for authentication between the client and the server. Please contact your Administrator to ensure that the certificate being used for authentication is valid.



811

The network connection between your computer and the VPN server could not be established because the remote server is not responding. This is typically caused by a pre-shared key problem between the client and server. A pre-shared key is used to guarantee you are who you say you are in an IP Security (IPSec) communication cycle. Please get the assistance of your administrator to determine where the pre-shared key problem is originating.



812

The connection was prevented because of a policy configured on your RAS/VPN server. Specifically, the authentication method used by the server to verify your username and password may not match the authentication method configured in your connection profile. Please contact the Administrator of the RAS server and notify them of this error.



813

You have attempted to establish a second broadband connection while a previous broadband connection is already established using the same device or port. Please disconnect the earlier connection and then re-establish the connection.



814

The underlying Ethernet connectivity required for the broadband connection was not found. Please install and enable the Ethernet adapter on your computer via the Network Connections folder before attempting this connection.



815

The broadband network connection could not be established on your computer because the remote server is not responding. This could be caused by an invalid value for the 'Service Name' field for this connection. Please contact your Internet Service Provider and inquire about the correct value for this field and update it in the Connection Properties.



816

A feature or setting you have tried to enable is no longer supported by the remote access service.



817

Cannot delete a connection while it is connected.



818

The Network Access Protection (NAP) enforcement client could not create system resources for remote access connections. Some network services or resources might not be available. If the problem persists, disconnect and retry the remote access connection or contact the administrator for the remote access server.







819

The Network Access Protection Agent (NAP Agent) service has been disabled or is not installed on this computer. Some network services or resources might not be available. If the problem persists, disconnect and retry the remote access connection or contact the administrator for the remote access server.



820

The Network Access Protection (NAP) enforcement client failed to register with the Network Access Protection Agent (NAP Agent) service. Some network services or resources might not be available. If the problem persists, disconnect and retry the remote access connection or contact the administrator for the remote access server.



821

The Network Access Protection (NAP) enforcement client was unable to process the request because the remote access connection does not exist. Retry the remote access connection. If the problem persists, make sure that you can connect to the Internet, and then contact the administrator for the remote access server.



822

The Network Access Protection (NAP) enforcement client did not respond. Some network services or resources might not be available. If the problem persists, disconnect and retry the remote access connection or contact the administrator for the remote access server.



823

Received Crypto-Binding TLV is invalid.



824

Crypto-Binding TLV is not received.



825

Point-to-Point Tunnelling Protocol (PPTP) is incompatible with IPv6. Change the type of virtual private network to Layer Two Tunnelling Protocol (L2TP)



Note In this 8255 error message, the word "Tunnelling" is a misspelling for the word "Tunneling."

826

EAPTLS validation of the cached credentials failed. Please discard cached credentials.



827

The L2TP/IPsec connection cannot be completed because the IKE and AuthIP IPSec Keying Modules service and/or the Base Filtering Engine service is not running. These services are required to establish an L2TP/IPSec connection. Please ensure that these services have been started before dialling the connection


Note In this 827 error message, the word "dialling" is a misspelling for the word "dialing."
Properties

Article ID: 923944 - Last Review: Apr 14, 2010 - Revision: 1

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