Sunday, August 26, 2012

Virtual Private Network Frequently Asked Questions




1. Why am I being disconnected after 4 hours of use?
You will get disconnected due to the limited number of ports and the fact that 90% of all users do not need to connect more than 4 hours, all units were set to 4 hours limit.If time you require more time , you should disconnect gracefully before the deadline and reconnect so that no one loses their job.

2. Why not use an 800 number for all the time?
The use of an 800 number cost the company 5 cents per minute than to call a local number, when available, which costs 5-7 cents on a single charge time to start the call at no charge per minute.

3. I have to be connected when email arrives to prepare or e-mail?
No, e-mail is stored on the server until you need to access it.The proper way to manage your e-mail when working remotely is to make a connection periodically during the day, pulling down the mail and then disconnecting.You can prepare your e-mail offline. When you make the next connection to process incoming mail all mail preparation may be sent at this time.

4. What about issues of reconnection?
If you are running Windows 95, NT, 2000 or XP by reconnections should be as simple as clicking on the icon to reconnect.

5. How can I speed up my dial-in connection?
Just install the necessary protocols.Usually IP is the only necessary unless you log on to install Novell Servers.Never NetBEUI.A good practice, if only access to the Novell server from time to time, is to create two configurations, one with IP access only and one with both IP and IPX. Using the second configuration only when necessary.

6. Why can not I see all drives in My NT network?
When you dial in Access Network Gateway is normally a segment without a master, which is how units are displayed in Neighborhood.This network does not mean that you can not access the drive however.If the group is trying to access is a member of the structure corporate WINS and you configure the remote for setup instructions, WINS automatically fix the unit IP address when you connect a disk Explorer.The key to this is to know the name of the computer and sharing that is required before start the process.

7. Why does my Dial-Up Networking can not work after loading AOL?
AOL sometimes the driver replaces TCP / IP Winsock, causing your PC run poorly or not all.Fix:

1. Delete all references to TCP / IP properties of network neighborhood.

2. Restart the system.

3. Add the Microsoft TCP / IP with Facebook Connect

This will automatically add TCP / IP for all the cards and you should be working.



8. Can I use Network Address Translation (NAT) to connect my home computer via VPN?
In general, NAT is not supported by client.Routers IPSEC VPN as the Linksys BEFSR11 and BEFSR41 do with VPN support software implementations can be used if workaround.NAT One-to-One NAT used.9. Why can not I have more speed on my 56K V.90 modem in some sites NAG?
A 56K V.90 modem is asymmetric by design, so download speeds can be as much as the upload speed to 56k, but will it be up to 33.6bps.

For 56k to work, there must be a single analogue to digital (A / D) conversion loop.Thus local telephone calls, when the modems at both ends are analog, 56k speed can never be reached because most PSTN exchanges run digital routing.Some NAG sites use analog phone lines with Cisco and standard 56k modem, while most of the PCs they use a composition similar modem.Between both modems, which limits the speed Download to about 33.6 kbps maximum.At same time, many users may experience connection speeds lower due to other reasons such as poor line quality.

These factors also contribute to the quality and speed of the line.10. When I load the Extranet Client on my PC and WinPoET is installed on my machine, it crashes or does not work properly.
There are known issues WinPoET software running on the PC with the Nortel Extranet (VPN) Client.To repair the system, boot into safe mode and uninstall the WinPoET Software.A simple solution is to have users install the Linksys hardware router.It BEFSR41 has a firmware PPPOE connector, which eliminates WinPoET from your PC and offers the advantage of a firewall NAT to the user with the ability to connect up to three seconds PCs.A other option is to find a PPPOE client that does not interfere with VPN clients. If you WinPoET, contact your local ISP to verify the correct operation of the Nortel VPN client.If, or if they are unsure, please do not install the new client, or ask your ISP to find an alternative client that PPPOE does not interfere with the Nortel VPN Client.If WinPoET you decide to use the new VPN client Nortel, Nortel strongly recommends using 6.0 or WinPoET higher.Earlier WinPoET software versions are known to cause conflicts with the Nortel VPN client.If WinPoET have on your PC and experience problems (ie with an earlier version prior to 6.0) the following 8 steps WinPoET safely uninstall software from your PC and repair the system from booting properly.

1. Access to safe mode.

2. Log in Profile Admin.

3. Go to Add / Remove programs and uninstall the Client Extranet. Do not reboot at the prompt.



4. Check if the adapter is installed WinPoET. If so remove it.

5. Go to Device Manager / Network Adapters. Right click WinPoET Winport or adapter. Uninstall.

6. Go to Administrative Tools. / Services and disable WinPoET-over-Ethernet.

7. Reboot the PC.

8. Reinstall the VPN client extranet.

An alternative solution is to install the hardware Linksys BEFSR41 router. It has a firmware PPPOE connector, which eliminates the need for WinPoET PC.

11. My ISP stays connected and I have no known problem with my Internet Service Provider. The problem is intermittent.
Check the version of the Contivity Extranet Access client.You should use the current version of the client, 4.65 or higher. You can view the latest version by clicking on Current Version.12. I'm having problems with the VPN connection.
Try to isolate the problem by process of elimination.

1. Your connection to the Internet to the public Internet is working properly?

2. Do you have the latest version of the Contivity Extranet Access client?


3. Have you recently installed new software or hardware?

4. Were any hardware or software changes made after the VPN connection was the last working?

5. You scan your computer?

If you still experience problems, try uninstalling or removing the following items.

1. Disable your firewall, anti-virus software and all other maintenance programs or security installed.

Try to connect.

2. Remove the router configuration.

Connect the PC directly to the Internet.

This is achieved by connecting the cable coming out of your DSL / cable modem directly into your network card or USB connector.

If successful, the problem may be to install the router or firmware.

Refer to the manufacturer's website or documentation for the resolution of the router or contact the vendor directly for support.

You need to upgrade the firmware.

Please be careful even if you could have just bought the router, it may have been packaged with a previous version of the software.



3. Enable the router, firewall / internet security programs, one at a time.

Cable / DSL users: If you have a dial-up modem installed on your PC, try using a dialup connection.

Using dialup to an ISP and then use VPN or dialup directly into your network.

13. Upgrading to release 4.6 x VPN client failed.
See the list below and see if this applies to: Disable Windows XP Firewall XP.

Most VPN software VPN client can not coexist on the same machine.

Windows ME Remove and add TCP / IP.

Brother Multifunction Printer You can not be running the current software for the Brother printer. Windows 2000. Users should download the drivers / software from the web site http://www.brother.com Brother Brother or contact support.

14. How can I remove and reinstall TCP / IP Protocol?
Below are instructions on how to remove and add TCP / IP for Windows 2000. (Refer to the help screens of the operating system, web support and / or documentation for instructions if you are not using Windows 2000.) Please be sure, no matter which operating system you use, you choose to restart at the end (as required) or reboot between each process.For Windows 2000 you must be logged on as administrator or a member of the Administrators group to complete this procedure.Remove TCP / IP

1. Network and Internet Connections, click Start, point to Settings, then Network Connections.



2. Right-click a network connection, and then click Properties.

3. On the General tab (for a local area connection) or the Networking tab (all other connections), click Internet Protocol (TCP / IP) and then click Uninstall.

4. In the Uninstall Internet Protocol (TCP / IP) dialog box, click Yes.

Install TCP / IP

5. Open Network and Dial-up. (Click Start, point to Settings, then Network Connections.)

6. Right-click the network connection for which you want to install and enable TCP / IP and click Properties.

7. On the General tab (for a local area connection) or the Networking tab (all other connections), if Internet Protocol (TCP / IP) is not in the list of installed components, then do the following:

A. Click on Install.

B. Click Protocol and then click Add.

C. In the Select Network Protocol dialog box, select Internet Protocol (TCP / IP) and then click OK.

D. Verify that Internet Protocol (TCP / IP) is selected, then click OK.

TCP / IP network protocol is installed as the default if the hardware of the network card was detected during installation of Windows 2000. You just need to follow these instructions if the TCP / IP default selection was ignored during installation.

15. I am using Windows XP Home or Professional, and are capable of reaching certain Web sites or server resources when connected via VPN.
There are some known issues when using the Nortel Contivity Client 4.60 on a PC with Windows XP.The old version of the Nortel client (version 3.70) will solve the problem, however, the ultimate goal is to update the current version.Please will not reinstall the version 3.7x as fix.16. My ISP requires the installation of WinPoET. Can I use it with the latest version of the client?
If you use WinPoET, must be version 6.0 or higher WinPoET.Check with your ISP and request WinPoET.17 v6.0 or higher. After installing AOL v8.0, I had problems with my connections to my network.
Users may experience problems with Windows Outlook email.You must create two separate profiles: a profile of a remote connection (POP3) for your AOL internet email account and another profile for a local LAN connection to the corporate network email. Here 's how: do

1. Click Start, Control Panel, Mail Services, View profiles and add the second profile.

2. Make sure the "Prompt for a profile to use" under the General tab of the properties of MS Outlook is selected.

3. Disable the driver ATWPKT2. (The ATKPKT2.SYS ATKPKT2.VXD files and are located in the directory below PROGRAM_FILESCOMMON_FILES AOL.)

18. I can not get an IP address, while "Hotelling".
When working remotely from a hotel (Hotelling), you must first launch your Internet Explorer to try to get a address.If just run IP VPN, you will not have obtained an IP address, VPN and firewall can fail.Disable as the hotel can recommend.19. Why do I get No Domain Available when dialing my ISP?
The Internet service provider (ISP) dial-up, click the right mouse button and select the properties tab Button.Click type of server and make sure that "Log On To Network" box is unchecked, otherwise it hangs trying to access the network when trying to connect.20. Why do I have to run so slowly when using the VPN connection?
The Internet service provider (ISP) dial connection.Right click with your mouse and select the properties tab Button.Click type of server and make sure the boxes NetBEUI and IPX / SPX are unchecked, otherwise you will see delays, while the system tries protocols.VPN supported only supports TCP / IP to control these boxes will only slow down.21. Why can not I access my Windows NT Explorer when using VPN?
Windows 95 users should make sure they have the "Box Network Access" check-in customer extranet for instructions to install the Client Extranet to use resources such as Exchange and NT file shares.22. Because I seem to be running slowly through my VPN connection?
Try to disable the compression software on the Internet Providers (ISPs), dial-up connection as a VPN client has its own compression. Click the right mouse button and select the properties tab Button.Click type of server and uncheck the "Software Compression" setting.23. Why can not I have my Novell server when using VPN?
VPN supports only TCP / IP and most servers require the use of Novell IPX / SPX to access them.Work with your administrators to change NT or Novell to use a version of Novell that supports IP traffic.24. Can not VPN Web server on the Internet after a connection is established Contivity VPN client.

Cause:

This is normal and occurs as a result of having all network traffic passes through the corporate network.

Typically, firewalls and other security measures will limit your VPN network on the Internet.

Action:

The Contivity VPN Switch administrator can set a default location on the switch to forward traffic on the Internet.

If this default location is not configured, you will need to disconnect the connection to surf the web Contivity Internet through the ISP connection.

25. Unable to network shares after VPN Contivity VPN connection has been established.

Causes:

1. WINS servers can be configured for IPsec connections on the Contivity VPN Switch.

2. The system can be configured for a domain other than the one on the remote network.

Actions:

For the first problem, verify that the Contivity VPN Client has been configured with a WINS server.

1. Follow the procedures described above in the section "Problems with name resolution using DNS services" to run IPCONFIG at the command prompt on NT 4.0 and WINIPCFG to run on Windows 95.



2. Check that a primary WINS server is listed under the tab called IPSecShm on NT 4.0 and Windows 95.



3. Check that a primary WINS server is listed in the card WINIPCFG Contivity VPN Client.

4. If there is no primary WINS server listed, inform the network administrator that the switch Contivity VPN might not be configured properly.

For the second problem, skip the initial access rule when you start Windows 95 and select "Log on to the remote domain" under the Options menu of the Contivity VPN Client dialog box.

1. You will be prompted to enter the domain of the remote network after the Contivity VPN connection is made.

2. This method is recommended for users with Docking Station configurations.
Alternatively, on both NT 4.0 and Windows 95, to adjust the workstation to be a member of a workgroup instead of domain.

1. From the Start menu, select Settings, then Control Panel.

2. In Control Panel, double-click on the icon labeled "Network". The Network Control Panel applet opens. Select the ID card.

3. In Windows 95, the entries on the page can be edited directly, and NT 4.0 you must click on the Change button to change the entries.

Change of use of a working group and verify that the "computer name" does not correspond to what might be on the remote network.

4. The name for the working group is not important, then enter anything. Click OK to save changes and restart the machine.

When you access a resource on the remote domain, if you are prompted for a user name and password, you must have a domain name preceding the user ID.

For example, if your user ID is Joes and access to a machine in the remote domain called CORP, you must enter your user name as CORPJoeS.

26. When you try to load the VPN client on an dual processor you get an error message.
The Nortel VPN client does not currently support units.27 dual processor. When I set up my home network, I installed Microsoft Internet Connection Sharing (ICS) so that all my systems can reach the Internet. Now my VPN client no longer works.
The reason for this is that the Microsoft ICS uses Network Address Translation (NAT) for connecting to the Internet and NAT, which can not support IPSec connections only way around this time, is to make the unit running The ICS will be to run the VPN connection. Each downstream units will not be functional for VPN.28. Can Cisco IPSEC VPN client or other software on the same machine with the client Nortel Extranet Access? And 'this supported?
They can not coexist, and is not supported.The two virtual adapters installed with each customer will be in conflict with each other.There is a utility for new customers that Cisco Nortel uninstall a client if found by the Cisco Unity VPN Setup Client. all other VPN client requires manual removal of the Nortel client or any other client.29. I'm having problems with the VPN connection is not already discussed.
Try to isolate the problem by process of elimination.

1. Your connection to the Internet to the public Internet is working properly?

2. Do you have the latest version of the Contivity Extranet Access client?

3. Have you recently installed new software or hardware?



4. If a software or hardware changes made since the VPN connection was the last working?

5. You scan your computer for viruses?

If you still experience problems, try to uninstall / remove the following entries.

1. Disable your firewall, anti-virus software and all other maintenance programs or security installed. Try to connect.

2. Remove the router (Linksys, D-Link, Cisco, Netgear, etc.) from the configuration.

Connect the PC directly to the Internet.

This is achieved by connecting the cable coming out of your DSL / cable modem directly into your network card or USB connector.

If successful, the problem may be to install the router or firmware.

Refer to the manufacturer's website or documentation for the resolution of the router or contact the vendor directly for support.

You need to upgrade the firmware.

Please be careful even if you could have just bought the router, it may have been packaged with a previous version of the software.

3. Enable the router, firewall / internet security programs, one at a time.

Cable / DSL users: If you have a dial-up modem installed on your PC, try using a dialup connection. Using dialup to an ISP and then use VPN.

30. VPN problems with name resolution with DNS services.

Case 1:

A DNS server can be configured for IPsec connections on the Contivity VPN Switch.

Action 1:

Verify that the Contivity VPN client is configured with a DNS entry.

For NT 4.0, open a command prompt and type ipconfig / all.

Verify that a DNS server entry is listed.

For Windows 95, from the Start menu on the taskbar, select Run and type WINIPCFG.

Select "Contivity VPN Adapter" from the drop-down list of adapters, then click More Info.

Record information appear under DNS Server and check with your network administrator.

Case 2:

The hostname to be resolved has both a public and a private IP address. This is commonly referred to as a Split-Horizon DNS.

Action 2:

Open a command prompt and ping the host you are trying to achieve with a fully-qualified hostname (for example, http://www.vpnclient.com).

If a response is received, verify that the IP address returned in the first row (for example, www.vpnclient.com [207.78.33.329] is an IP address from the corporate network remotely.

If not, inform the network administrator that the internal host name should be changed so that it is not the same as the external hostname.

Case 3:

The final version (aka "Release 1") of Windows 95 contained a bug that prevented the use of more than one DNS server. This problem has been fixed in OS Release2.

Action 3:
If you are using a version of Windows earlier than Windows 95 Release 2, then you need to update.

31. I'm having problems with mapping drives the latest version of the VPN client.
It is a known issue because Microsoft can occur when using cached credentials firewall.The behind a NAT problem occurs for some users, but not others.It can occur regardless of client VPN users are using.Some may experience this problem after upgrading to a new VPN client, but the restoration of the old client will not necessarily solve the problem.You can try to uninstall the VPN client and then reinstalling.For More and more SourcesYour VPN doctor has the Cure!

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