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The Routing and Remote Access snap-in lives within the Microsoft Management Console, referred to as the MMC. There are several ways to access the MMC. You can select the console from the Start menu's Programs choices, within the Administrative Tools folder within Windows server's Control Panel or by typing mmc at a command timely.

As Tech, Republic's Brandon Vigliarolo shows within his video at the start of this post, the Providers console shows the status of the Routing and Remote Gain access to entry. From within the Providers console and with the Routing and Remote Access entry highlighted, you can click Start the Service or right-click the entry and select Restart.

Often the VPN client and VPN server are set to using different authentication approaches. Validate whether an authentication error is the problem by opening the server console. Yet another method of accessing the MMC is to type Control+R to open a command prompt in which you can type mmc and struck Get in or click OK.

If the entry isn't present, click File, select Add/Remove Snap-in, choose the Routing and Remote Gain access to choice from the choices and click Add, then OK. With the Routing and Remote Gain access to snap-in added, right-click on the VPN server and click Properties. Then, examine the Security tab to validate the authentication method.

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Ensure the VPN customer is set to the authentication approach defined within the Security tab. Generally the products simply evaluated are accountable for a lot of VPN connection rejection errors. Other principles must be right, too. If the Windows Server hosting the VPN hasn't joined the Windows domain, the server will be unable to verify logins.

Each Web-based VPN connection usually utilizes 2 different IP addresses for the VPN client computer. This is the IP address that's utilized to develop the initial TCP/IP connection to the VPN server over the Internet.

This IP address normally possesses the exact same subnet as the regional network and hence enables the customer to interact with the regional network. When you established the VPN server, you should configure a DHCP server to assign addresses to clients, or you can develop a bank of IP addresses to designate to customers directly from the VPN server.

If this option is picked and the effective remote access policy is set to permit remote gain access to, the user will have the ability to connect to the VPN. I have been unable to re-create the scenario personally, I have heard rumors that a bug exists in older Windows servers that can cause the connection to be accepted even if the reliable remote gain access to policy is set to deny a user's connection.

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Another common VPN problem is that a connection is successfully developed but the remote user is not able to access the network beyond the VPN server. Without a doubt, the most common reason for this issue is that permission hasn't been granted for the user to access the entire network. To allow a user to access the entire network, go to the Routing and Remote Access console and right-click on the VPN server that's having the problem.

At the top of the IP tab is an Enable IP Routing check box. If this check box is enabled, VPN users will be able to access the rest of the network, presuming network firewall softwares and security-as-a-service settings permit. If the checkbox is not selected, these users will be able to gain access to only the VPN server, but nothing beyond.

If a user is dialing straight into the VPN server, it's typically best to configure a fixed path between the client and the server. You can configure a fixed route by going to the Dial In tab of the user's properties sheet in Active Directory site Users and Computers and picking the Apply A Static Route check box.

Click the Include Path button and then get in the destination IP address and network mask in the area offered. The metric should be left at 1. If you're using a DHCP server to designate IP addresses to customers, there are a number of other problems that might cause users not to be able to go beyond the VPN server.

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If the DHCP server appoints the user an IP address that is already in usage elsewhere on the network, Windows will find the dispute and avoid the user from accessing the rest of the network. Another common problem is the user not getting an address at all. The majority of the time, if the DHCP server can't designate the user an IP address, the connection will not make it this far.

If the customer is assigned an address in a range that's not present within the system's routing tables, the user will be unable to browse the network beyond the VPN server. Ensure the resources the user is trying to access are in fact on the network to which the user is connecting.

A VPN connection to the other subnet might, in truth, be needed. A firewall program or security as a service option could also be to blame, so do not forget to evaluate those services' settings, if such components exist between the VPN server and the resources the user seeks to reach.

The first possibility is that one or more of the routers included is performing IP packet filtering. IP package filtering might prevent IP tunnel traffic. I advise inspecting the customer, the server and any makers in between for IP package filters. You can do this by clicking the Advanced button on each device's TCP/IP Properties sheet, picking the Options tab from the Advanced TCP/IP Settings Residence sheet, choosing TCP/IP Filtering and clicking the Properties button.