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DUN Error Codes

Windows Dial-Up Networking (DUN) and Remote Access Service (RAS) give error codes for specific connection problems. This list provides an explanation of what those codes mean.

Code

Message

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 phonebook file

622

Cannot load the phonebook file

623

Cannot find the phonebook entry

624

Cannot write the phonebook file

625

Invalid information found in the phonebook

626

Cannot load a string

627

Cannot find a 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 DUN/RAS dial-out

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

642

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

643

A network adapter at the server failed

644

You will not receive network access pop-ups

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 dies 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 macro was not found in the device INF file section

656

The macro in the device INF file 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 response for the command

661

The device INF file is missing a command

662

Attempted to set a macro not listed in the device INF file

663

The media INI file refers to an unknown device type

664

Cannot allocate memory

665

The port is not configured for Dial-Up Networking/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 a 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. (check your password)

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. (Com Over run)

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 requites encryption

744

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

752

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