Known Bugs and Issues
15 Tips for Troubleshooting VPN Connections
Troubleshooting a VPN is complex because the data travels through many links. Check out these troubleshooting tips tailored to specific VPN connection problems. Source: Windows & .NET Magazine (April 2000)
Cannot Grant Dial-in Access to a User from an ADSI Script
Microsoft Knowledge Base Article: 252398 - When you create a user from an Active Directory Services Interface (ADSI) script in Windows 2000, you cannot enable the Remote Access Service (RAS) "Allow Access" permission in the
Remote Access Permission (Dial-in or VPN) section of the Dial-In
tab in the user's properties.
Cannot Use Shared Internet Connection While Connected to a VPN
Microsoft Knowledge Base Article: 247431 - When you are using a shared Internet connection for a local area network (LAN) on a computer running Microsoft Windows 2000 Professional and then establish a virtual private network (VPN) connection, the computers that are using the shared
connection can no longer connect to the Internet.
Cannot Use Wlbs.exe Remote Control Commands From Load Balanced VPN Servers
Microsoft Knowledge Base Article: 269004 - If you use the Wlbs.exe command line to remotely control a Network Load Balancing (NLB) cluster node that is part of an NLB cluster that is load balancing Point-to-Point Tunneling Protocol (PPTP) services, you may receive the following error:
C:\wlbs query 192.168.0.1
WLBS Cluster Control Utility V2.3. (c) 1997-99 Microsoft
Corporation Accessing cluster '192.168.0.1' (192.168.0.1): Did
not receive response from the cluster
Client VPN IP Address Must Be Used When You Add Static Routes for Windows 2000 VPN Interface
Microsoft Knowledge Base Article: 259171 - The Windows 2000 Resource Kit incorrectly states that the IP address of the VPN server should be used as the gateway address when adding static routes for the VPN interface.
Enabling VPN in RRAS Causes Connection Issues to Remote Networks
Microsoft Knowledge Base Article: 243374 - RRAS does not forward packets after you enable Virtual Private Network (VPN).
Error Message: Error 930; The Authentication Server Did Not Respond to Authentication Requests in a Timely Fashion
Microsoft Knowledge Base Article: 299684 - When you set up Internet Authentication Service (IAS - for Routing and Remote Access service (for either virtual private network [VPN] or dial-up traffic) , the client computers may receive the following error
Error Message: "Error 623 The System Could Not Find the Phone Book Entry for this Connection" When Making a VPN Connection
Microsoft Knowledge Base Article: 227391 - When you try to connect to a Virtual Private Connection in Network and Dial-up Connections, the following error message is
Error Message Is Displayed When Setting Up a Virtual Private Network on Windows 2000 in a Windows NT 4.0 Domain
Microsoft Knowledge Base Article: 260027 - When you use Microsoft Windows 2000 Server in a Microsoft Windows NT 4.0 domain, and the Active Directory utility is not installed, you may receive the following error message when you try to set up a remote access server (RAS) or Virtual
PPTP Clients Cannot Connect to Windows 2000 PPTP Server
Microsoft Knowledge Base Article: 266460 - When a Microsoft Windows 2000 Server is configured as a Point-to-Point Tunneling Protocol (PPTP) server and PPTP clients from either Microsoft Windows NT, Windows 2000, or Windows 95 or 98 try to establish a PPTP session, they receive the
following error message: Error 649 Login
failed: username, password, or domain was incorrect.
Only the Offline Files Are Displayed When You Use a Remote Access or Virtual Private Network Connection
Microsoft Knowledge Base Article: 290523 - When you connect to a network by using either a remote access or virtual private network (VPN) connection, you can browse the network as well as ping servers and receive a reply, but if you attempt to view the shared resources on a server,
you can observe only the files that have been made available
Routing and Remote Access Wizard for VPN Server Creates Non-Specific Input and Output Filters
Microsoft Knowledge Base Article: 260926 - When you setup a VPN server by using the Routing and Remote Access (RRAS) Configuration Wizard, you are asked to specify an Internet connection. When you select an adapter from the list presented, input and output filters are assigned to each
Standby or Hibernation Mode Disconnects ISDN, Modem and VPN Connections
Microsoft Knowledge Base Article: 227618 - When you manually put a computer running Windows 2000 into a Standby or Hibernation mode, any ISDN, modem, or VPN connection is disconnected.
VPN Client Connection Stops Working After Hibernate or Standby
Microsoft Knowledge Base Article: 263965 - Virtual Private Network (VPN) connections from a Windows 2000 client may stop working after the computer resumes from Hibernate or Standby mode if the..
VPN Connections Dropped When Computer Goes Into Standby Mode
Microsoft Knowledge Base Article: 216479 - When your computer goes into Standby mode, all active Virtual Private Network (VPN) connections may be disconnected.
VPN Connection Is Not Available for Logon with Dial-Up Networking
Microsoft Knowledge Base Article: 231426 - When you log on using the "Log on using Dial-Up Networking" option, your recently created virtual private networking (VPN) connection may not be listed.
VPN That Uses MS-CHAP Authentication Does Not Connect to RRAS Server
Microsoft Knowledge Base Article: 289732 - When you create a virtual private network (VPN) connectoid to the IP address of an RRAS server that has Microsoft Challenge-Handshake Authentication Protocol (MS-CHAP) authentication enabled, the VPN may not
Windows 2000 NAT Does Not Translate Netlogon Traffic
Microsoft Knowledge Base Article: 263293 - When you try to log on to a domain from a computer that is running Microsoft Windows NT 4.0, Microsoft Windows 95, or Microsoft Windows 98, and is located behind a Windows 2000-based server that is performing network address translation
You Cannot Connect to the Internet After You Connect to a VPN Server
Microsoft Knowledge Base Article: 317025 - After you use a Virtual Private Network (VPN) connection to log on to a server that is running Routing and Remote Access, you may be unable to connect to the Internet.
ZoneAlarm Firewall Software Prevents VPN Connection Through PPTP
Microsoft Knowledge Base Article Q285549 - When your Microsoft Windows 2000 Professional-based computer is running the Zone Labs ZoneAlarm firewall software, you may find that you cannot establish a Virtual Private Network (VPN - connection by using the Point-to-Point Tunneling Protocol