Error VPN & Troubleshoot
Troubleshoot & Error number
Error
619:
Solution:
Error 619: 1. The port was disconnected (or Error 645, Dial-Up
Networking could not complete the connection to the server and
Error 930, The authentication server did not respond to
authentication requests in a timely fashion. The Event Viewer
shows: Event id: 20073, Description: The following error
occurred in the Point to Point Protocol module on port: port
number, UserName: user name. The authentication server did not
respond to authentication requests in a timely fashion). When
using VPN to access a remote network, W2K clients mat get
above errors but not win9x and ME clients. This issue occurs
because the VPN server hasn't registered in Active Directory.
2.You get this message when connecting via cable modems, dial
up DOESN'T have any issues.
Resolution: 1) This problem
most likely is secure issue such as unsecured password. So,
check the settings.
2) It could be the hardware issue. Try
to re-setup the device or download the new driver or just
reset the devices such as modem and router.
3) Reapply the
service pack
4) If the RRAS is in a domain network, add the
VPN to the appropriate group. To do this, go to Active
Directory Users and Computers>domain name>Users, double-click
the RAS and IAS Servers security group. Select the members and
add the VPN server to this group. 2) Type netsh ras add
registeredserver at a command prompt (registeredserver is vpn
server name), and then press ENTER.
5) If the router is
connectijg to a modem and setup DHCP to receive IP from the
modem, you may try to assign static IP to the WAN port on the
router.
Error
628:
The port is disconnected or The connection was
terminated by the remote computer before it could be
completed. This is most likely a modem or phone line noise
issue or blocking port issue.
Solution:
1) make sure
you have good phone line.
2) Upgrade the modem/router
firmware.
3) Make sure you logon using the correct username
or password or try different username.
4) Reinstall the
modem.
5) Check the router/firewall settings.
6) Make
sure the router is VPN pass through or GRE is enabled.
Error 629 -
The port was disconnected by the remote machine (also re:
error 913).
Solution:
1) Make sure the username and password you have entered for
the DUNS connection is correct.
2) Also make sure the
phone number is correct.
3) if calling a server set for
128-bit encryption when you don't have 128-bit encryption
installed on client.
4) if all the entries for RAS are not
correct, you may get this error. This would include incorrect
settings for the Basic, Server, Script, Security and X.25.
5) The settings for authentication and encryption on the
security tab must match what your ISP requires.
6) if a
new account logs on using PPTP and change password on first
logon is enabled.
7) may be caused if the modem port speed
is set below 19,200.
8) Can be caused by software or modem
not being configured properly or being damaged.
Error 630:
The port was
disconnected due to hardware failure.
Solution:
1)
Check that the modem is plugged in, and if necessary, turn the
modem off, and then turn it back on.
2) Check if your modem
is being given a bad init string - with a command that it does
not support.
3) Check if another program is already using
the modem, or, if the modem or serial port's resources
configuration is incorrect.
4) Reboot your computer and try
it again.
5) If that doesn't work, go to Start -> Settings
-> Control Panel -> Modems -> Diagnostics and get More Info
from your modem. If it fails, your modem driver is corrupt and
needs to be re-installed.
6) Update the modem drivers.
Error
633:
Modem is already in use, or is not configured
for Remote Access dial out or The port is in use.
Solution:
1) Verify no other applications that are using
the modem. You can open Task Manager to check that by press
CTRL+ALT+DEL. Another way to test it is reboot the computer.
2) This behavior may occur when another device with a driver,
for example outdated Palm Pilot software, conflicts with the
modem.
3) Telephone.ini or unimdm.tsp is missing or
damaged.
4) Make sure the modem is setup correctly and may
apply SP.
5) Removing and reinstalling it, or apply the new
drive may fix the problem.
6) Make sure no two ISDN
installed on the same machine and attempt to connect to the
same server.
Error
638:
Remote PPP peer or computer is not responding.
Solution:
If you have tried many thing other people
suggest like rebooting, reloading hardware and re-installing
the VPN or dial in connection, you still get the same problem.
I will suggest to check the router settings and make sure TCP
Port 1723, IP Protocol 47 (GRE) are opened. Also make sure
that the router has the PPTP enabled and not firewall block
the traffic. On the RAS server, check the DHCP settings.
Error
645:
Internal authentication error (also re: error
913), or Dial-Up Networking could not complete the connection
to the server.
Solution:
1) Make sure you are
entering your correct username and password when connecting.
2) Uninstall and reinstall the Dial Up adapter.
Error
678:
There was not answer.
Solution:
1)
Make sure you have good connection.
2) If using VPN, make
sure the port 1723 and IP Protocol 47 (GRE) are opened.
Error
691:
Access denied because username and/or password
is invalid on the domain.
Solution:
1) Verify the
logon ID and password are correct.
2) Turn off your windows
firewall (Control Panel>Windows Firewall)
3) Check your
Antivirus firewall, it should be allowed to VPN software.
Error
721:
Remote PPP peer or computer is not responding.
Solution:
Switch from PPTP to L2TP.
Resolution: If
you have tried many thing other people suggest like rebooting,
reloading hardware and re-installing the VPN or dial in
connection, you still get the same problem. I will suggest to
check the router settings and make sure TCP Port 1723, IP
Protocol 47 (GRE) are opened. Also make sure that the router
has the PPTP enabled and not firewall block the traffic. On
the RAS server, check the DHCP settings.
Error
732:
The PPP negotiation is not converging.
Solution:
Make sure you have good connection.
Error 741 - 789:
The local
computer does not support the required encryption type.
Solution:
1) Make sure you enter correct password.
2) Check that you selected IPSec VPN in connection setting and
your preshared-key is correct (for manual connection in L2TP).
3) Switch from L2TP to PPTP.
The connection attempt failed
because of failure to encrypt data
Cause: the VPN
server doesn’t setup to use encryption.
Solutions:
1. Setup encryption on the VPN server.
2. If
encryption is not necessary, disable encryption on the VPN
client and try again.
Error
769
Error Why is Windows VPN reporting error 769
when trying to connect to MacConnect?
This error may occur
when attempting to connect to the Internet via a PPPoE
(Point-To-Point Protocol over Ethernet) connection, a
connection type often used with DSL (Digital Subscriber Line)
Internet connections, as a result of a disabled network card.
From the Desktop, right-click My Computer and choose
Properties.
Click the Hardware tab and click the Device
Manager button.
Once the list populates, use the plus sign
(+) beside Network Adapters to expand that branch of the
navigation tree.
Find your network card, which will
probably have a yellow exclamation mark beside it.
Double-click the network card and choose Use This Device
(Enable) from the Device Usage drop-down list.
Click OK,
close the Device Manager, and try your PPPoE connection again.
Error 792:
The L2TP
Connection Attempt failed because security negotiation timed
out.
Solution:
1) Check that you selected IPSec VPN
in connection setting and your preshared-key is correct.
2)
Switch from L2TP to PPTP.
Error 797
The
modem could not be found.
Resolutions:
1. Rebooting
the machine that may solve the problem.
2. Remove and then
re-install the modem.
3. Check to see if there is an
upgrade driver for your modem.
Error
800:
Unable to establish the VPN connection. The VPN
server may be un-reachable, or security parameters may not be
configured properly for this connection.
Solution:
1) if you have firewall, open TCP
Port 1723, IP Protocol 47 (GRE).
2) make sure you can reach
the VPN server by using ping. Sometimes, poor connection can
cause this issue too.
3) You may need to updated firmware
on a router or firewall if other OS (win9x/nt/me/w2k) works
except XP.
4) The VPN server may not be able to get IP from
DHCP for the VPN client. So, you may want to re-configure VPN
host networking settings. For XP pro VPN host, go to the
Properties of the VPN>Network, check Specify TCP/IP address
and Allow calling computer to specify its own IP address, and
uncheck Assign TCP/IP addresses automatically using DHCP.
5) Make sure no other secure software blocks your access, for
example, if you use Norton secure software, you may need to
add the remote client's IP so that the client can access.
6) If your VPN running on a Windows RRAS with NAT enabled, you
may want to check the NAT settings.
7) If you can establish
the VPN from the desktop at home but not from the laptop. Make
sure no security software like Microsoft OneCare software that
blocks the GRE.
Error
806:
A connection between your computer and the VPN
server has been established but the VPN connection cannot be
completed. The most common cause for this is that there is at
least one internet device between your computer and the VPN
server is not configured to allow GRE protocol packets Verify
that protocol 47 GRE is allowed on all personal firewall
devices or routers. if the problem persists, contact your
administrator.
Solution:
*) Make sure you can reach
the VPN server by using ping. Sometimes, poor connection can
cause this issue too.
**) Make sure other secure software
blocks your access, for example, if you use Norton secure
software, you may need to add the remote client's IP so that
the client can access.
1) if you have a router/firewall,
make sure you open TCP Port 1723, IP Protocol 47 (GRE).
2)
make sure you can reach the VPN server by using ping.
Sometimes, poor connection can cause this issue too.
3) You
may need to updated firmware on a router or firewall.
4)
The VPN server may not be able to get IP from DHCP for the VPN
client. So, you may want to re-configure VPN host networking
settings. For XP pro VPN host, go to the Properties of the
VPN>Network, check Specify TCP/IP address and Allow calling
computer to specify its own IP address, and uncheck Assign
TCP/IP addresses automatically using DHCP.
5) Make sure
other secure software blocks your access, for example, if you
use Norton secure software, you may need to add the remote
client's IP so that the client can access.
6) If your VPN
running on a Windows RRAS with NAT enabled, you may want to
check the NAT settings.
Error 868 (Windows 8):
the error 868 on Windows 8 can be fixed
using these steps:
1. Type "NETSH INT IP RESET" in command
prompt (start>run>cmd) - [admin mode]
2. or entering an IP
instead of hostname
To configure router dlink dir600
:
1st you have to connect
through cable one of ports of your router ( dir600 ) to your
computer
2nd type in internet explorer: 192.168.0.1
it
shows admin page with user and password
enter username as :
admin
password: keep it empty
press enter
and
continue to go to configuration
after that you will go to
pptp or l2tp connections
Vista
with Live OneCare Installed - Could Block VPN:
Windows Live OneCare replaces the existing built-in firewall
and although applications are enabled by default for
communication, certain required ports aren't. Thus, when you
attempt to create a VPN connection to a network, the process
will appear to hang, then fail, at the username and password
authentication stage. To resolve the problem, perform these
steps:
Solution:
1) Start the Windows Live OneCare
console (right-click the OneCare taskbar icon, which is
normally a green circle with 1 in it, and select "Open Windows
Live OneCare").
2) On the left side of the OneCare dialog
box under Other Tasks, click the "View or change settings"
link.
3) On the "Windows Live OneCare Settings" dialog box,
select the Firewall tab.
4) Click the "Advanced settings"
button.
5) Select the "Ports and Protocols" tab on the
"Advanced settings" dialog box.
6) Select the "VPN -
General Routing Encapsulation (GRE)" check box.
7) Click OK
to all open dialog boxes.
Mcafee Plus Internet Security - Could Block VPN:
Solution:
1) Begin by opening the mcafee security
center by right clicking on the Mcafee icon near the system
tray (the clock in the lower right of the screen.) You will
need to click on "Advanced Menu".
2) Next, on the left
panel of Mcafee Security Center. Click "Configure", then
"Internet & Network". Afterwards, click the "Advanced" button.
3) Next, on the left hand side of the window, select "Trusted
and Banned IPs & Click Add".
4) Add a single IP address, th
server IP address. In the description field, you can add any
description you would like to describe the connection. When
you are done, click the OK button. After closing the Security
Center, you should now be able to connect to the VPN.
Norton Internet Security - Could
Block VPN:
Solution:
1) Begin by opening the
Norton program window by double clicking on the icon in your
system tray (in the lower left of your screen near your
clock). Next, you will need to click on "Options" and then
"Norton Internet Security".
2) Next, click on "Personal
Firewall" and "Trust Control" and then click on the "Trusted"
tab. Click the "Add" button.
3) Add the IP address for the
VPN server. Next, Click the Ok button.
4) Finally, click
the OK button to apply the settings. After closing the
Security Center, you should now be able to connect to the VPN.