Error codes
 
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 macro was not found in the device .INF file section.
656
 The 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.
752
A syntax error was encountered while processing a script.
777
 The connection attempt failed because the modem (or other connecting device) on the remote computer is out of order.
797
 The modem could not be found. This is normally down to the incorrect driver being installed. This only happens in Windows 2000™ and XP™