List of error codes for dial-up connections or VPN connections

This article lists the error codes that you may receive when you make a dial-up connection or a VPN connection.

Original KB number:   824864

Note

Error codes with numbers higher than 900 will only be seen if you are trying to connect to a Routing and Remote Access Server that is running Windows 2000 or later.

Error codes

The following list contains the error codes for dial-up connections or VPN connections:

• 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.

• 605

  Cannot set port information.

• 606

  The port is not connected.

• 607

  The event is invalid.

• 608

  The device does not exist.

• 609

  The device type does not exist.

• 610

  The buffer is invalid.

• 611

  The route is not available.

• 612

  The route is not allocated.

• 613

  Invalid compression specified.

• 614

  Out of buffers.

• 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.

• 620

  There are no endpoints.

• 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.

• 626

  Cannot load a string.

• 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.

• 634

  Cannot register your computer on the remote network.

• 635

  Unknown error.

• 636

  The wrong device is attached to the port.

• 637

  The string could not be converted.

• 638

  The request has timed out.

• 639

  No asynchronous net available.

• 640

  A NetBIOS error has occurred.

• 641

  The server cannot allocate NetBIOS resources needed to support the client.

• 642

  One of your NetBIOS names is already registered on the remote network.

• 643

  A network adapter at the server failed.

• 644

  You will not receive network message popups.

• 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.

• 650

  The Remote Access server is not responding.

• 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.

• 674

  Cannot read the maximum connection BPS rate from the media .INI file.

• 675

  Cannot read the maximum carrier BPS rate from the media .INI file.

• 676

  The line is busy.

• 677

  A person answered instead of a modem.

• 678

  There is no answer.

• 679

  Cannot detect carrier.

• 680

  There is no dial tone.

• 681

  General error reported by device.

• 682

  ERROR WRITING SECTIONNAME

• 683

  ERROR WRITING DEVICETYPE

• 684

  ERROR WRITING DEVICENAME

• 685

  ERROR WRITING MAXCONNECTBPS

• 686

  ERROR WRITING MAXCARRIERBPS

• 687

  ERROR WRITING USAGE

• 688

  ERROR WRITING DEFAULTOFF

• 689

  ERROR READING DEFAULTOFF

• 690

  ERROR EMPTY INI FILE

• 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

• 706

  ERROR WRITING INITBPS

• 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.

• 712

  Biplex port is initializing. Wait a few seconds and redial.

• 713

  No active ISDN lines are available.

• 714

  Not enough ISDN channels are available to make the call.

• 715

  Too many errors occurred because of poor phone line quality.

• 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.

• 719

  PPP terminated by remote machine.

• 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.

• 724

  The IPX protocol cannot dial-out on the port because the computer is an IPX router.

• 725

  The IPX protocol cannot dial-in on the port because the IPX router is not installed.

• 726

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

• 727

  Cannot access TCPCFG.DLL.

• 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.

• 743

  The remote server requires encryption.

• 744

  Cannot use the IPX net number assigned by the remote server. Check the event log.

• 745

  ERROR_INVALID_SMM

• 746

  ERROR_SMM_UNINITIALIZED

• 747

  ERROR_NO_MAC_FOR_PORT

• 748

  ERROR_SMM_TIMEOUT

• 749

  ERROR_BAD_PHONE_NUMBER

• 750

  ERROR_WRONG_MODULE

• 751

  The callback number contains an invalid character. Only the following 18 characters are allowed: 0 to 9, T, P, W, (,), -, @, and space

• 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.

• 758

  Internet Connection Sharing is already enabled on the connection.

• 759

  An error occurred while the existing Internet Connection Sharing settings were being changed.

• 760

  An error occurred while routing capabilities were being enabled.

• 761

  An error occurred while Internet Connection Sharing was being enabled for the connection.

• 762

  An error occurred while the local network was being configured for sharing.

• 763

  Internet Connection Sharing cannot be enabled. There is more than one LAN connection other than the connection to be shared.

• 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. 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.

• 779

  To dial out using this connection, you must use a smart card.

• 780

  An attempted function is not valid for this connection.

• 781

  The connection requires a certificate, and no valid certificate was found. For further assistance, click More Info or search Help and Support Center for this error number.

• 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. 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. 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. 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.

• 900

  The router is not running.

• 901

  The interface is already connected.

• 902

  The specified protocol identifier is not known to the router.

• 903

  The Demand-dial Interface Manager is not running.

• 904

  An interface with this name is already registered with the router.

• 905

  An interface with this name is not registered with the router.

• 906

  The interface is not connected.

• 907

  The specified protocol is stopping.

• 908

  The interface is connected and hence cannot be deleted.

• 909

  The interface credentials have not been set.

• 910

  This interface is already in the process of connecting.

• 911

  An update of routing information on this interface is already in progress.

• 912

  The interface configuration in invalid. There is already another interface that is connected to the same interface on the remote router.

• 913

  A Remote Access Client attempted to connect over a port that was reserved for Routers only.

• 914

  A Demand Dial Router attempted to connect over a port that was reserved for Remote Access Clients only.

• 915

  The client interface with this name already exists and is currently connected.

• 916

  The interface is in a disabled state.

• 917

  The authentication protocol was rejected by the remote peer.

• 918

  There are no authentication protocols available for use.

• 919

  The remote computer refused to be authenticated using the configured authentication protocol. The line has been disconnected.

• 920

  The remote account does not have Remote Access permission.

• 921

  The remote account has expired.

• 922

  The remote account is disabled.

• 923

  The remote account is not permitted to logon at this time of day.

• 924

  Access was denied to the remote peer because username and/or password is invalid on the domain.

• 925

  There are no routing enabled ports available for use by this demand dial interface.

• 926

  The port has been disconnected due to inactivity.

• 927

  The interface is not reachable at this time.

• 928

  The Demand Dial service is in a paused state.

• 929

  The interface has been disconnected by the administrator.

• 930

  The authentication server did not respond to authentication requests in a timely fashion.

• 931

  The maximum number of ports allowed for use in the multilinked connection has been reached.

• 932

  The connection time limit for the user has been reached.

• 933

  The maximum limit on the number of LAN interfaces supported has been reached.

• 934

  The maximum limit on the number of Demand Dial interfaces supported has been reached.

• 935

  The maximum limit on the number of Remote Access clients supported has been reached.

• 936

  The port has been disconnected due to the BAP policy.

• 937

  Because another connection of your type is in use, the incoming connection cannot accept your connection request.

• 938

  No RADIUS servers were located on the network.

• 939

  An invalid response was received from the RADIUS authentication server. Make sure that the case-sensitive secret password for the RADIUS server is set correctly.

• 940

  You do not have permission to connect at this time.

• 941

  You do not have permission to connect using the current device type.

• 942

  You do not have permission to connect using the selected authentication protocol.

• 943

  BAP is required for this user.

• 944

  The interface is not allowed to connect at this time.

• 945

  The saved router configuration is incompatible with the current router.

• 946

  RemoteAccess has detected older format user accounts that will not be migrated automatically. To migrate these manually, run XXXX.

• 948

  The transport is already installed with the router.

• 949

  Received invalid signature length in packet from RADIUS server.

• 950

  Received invalid signature in packet from RADIUS server.

• 951

  Did not receive signature along with EAPMessage from RADIUS server.

• 952

  Received packet with invalid length or Id from RADIUS server.

• 953

  Received packet with attribute with invalid length from RADIUS server.

• 954

  Received invalid packet from RADIUS server.

• 955

  Authenticator does not match in packet from RADIUS server.