There are a number of possible causes for such a behavior. This FAQ will help you to find out what is causing the problem in your specific situation. In this FAQ we will be using destination device as a generic term for the device you are trying to connect to. The destination device can be anything from a normal computer, to a server, to a network printer.

1. Are you trying to connect to the destination device using a host name?

If you are using a host name, please try once using its IP address instead. If that works, the problem has to do with DNS resolution. Please make sure DNS is enabled for the VPN connection and correctly configured. Note that using Bonjour or NETBIOS hostnames is generally not possible over VPN.

2. Is the IP address you are connecting to really part of the remote network?

For example, if your remote network is 192.168.13.0/24, you should be able to connect to IPs starting with 192.168.13.x, but connections to IPs starting with 192.168.14.x will not work as they are outside the address range of traffic tunneled through the VPN.

3. Is the local address in VPN Tracker part of the remote network?

Using a local address in VPN Tracker (Basic > Local Address) that is part of the remote network is not possible with most VPN gateways. Please use a local address that is outside all remote networks. For example, if your remote network is 192.168.13.0/24, do not use an address starting with 192.168.13. If you are using an automatic configuration method (e.g. Mode Config, EasyVPN, DHCP over VPN) you may be able to assign a local address to VPN Tracker that is part of the remote network. Refer to the configuration guide for your VPN gateway for more information.

4. Could multiple VPN users use the same local address?

If multiple VPN users exist, pleas make sure no two users are using the same local address (Basic > Local Address), otherwise one of them will not be able to use the tunnel anymore whenever both of them are connected. If that field is empty in your configuration, VPN Tracker will just use the IP address of your primary network interface as local address, and of course, this can also cause an address conflict with another user, that’s why we do not recommend to leave that field empty if there are multiple VPN users.

5. Can you ping the LAN address of the VPN gateway?

You can find a ping tool directly in VPN Tracker under Tools > Ping Host. The LAN address of the VPN gateway is special in the regard that this address doesn’t need to be routed at all. So if you can ping that address but no other remote address, it is most likely a routing issue at the remote end.

6. If you can't ping anything, try re-running the VPN Availability Test

The VPN Availability Test can be found in the menu: Tools > VPN Availability Test. Then try connecting the VPN again. The results of this test depend on the capabilities of your local Internet router/modem or the Internet connection itself and they influence how the VPN tunnel is established. VPN Tracker automatically runs the test for every new Internet connection it is able to detect but even if a connection has been tested before, there are various reasons why the behavior of that connection may have changed in the meantime.

7. Is your VPN gateway the default gateway (router) of its network?

If the VPN gateway is not the default gateway, you will in many cases need a suitable routing setup in order for responses to reach you. Whenever a device doesn’t know how to reach an IP address directly, it forwards its reply to its default gateway and if that isn’t the VPN gateway, it won’t know what to do with that reply data. In that case its important to configure the default gateway to forward replies to VPN users to the VPN gateway.

8. Is your VPN gateway the default gateway (router) of its network?

For more details, we would like to direct you to the following FAQ entry.

Configuring the Pre-Shared Key for a new VPN connection

I have lost my Pre-Shared Key - how can I get it back?

1. Check if you have stored the affected connection in your Personal Safe. If so, you may be able to download the connection again.
2. Check the Keychain (Applications > Utilities > Keychain Access). The Pre-Shared Key is usually saved here. Enter "Shared Secret" into the search bar to view a list of all your saved PSKs.
3. Are you using Time Machine Backup? You could try restoring an older connection with the Pre-Shared-Key.
4. Check your firewall or ask the relevant VPN Administrator. Refer to your device handbook to find out where to obtain this information on your specific firewall.

• Private IP Addresses, and
• Public IP Addresses

• 192.168.0.x, and
• 192.168.1.x

1. Change your local network to a different range (Preferred)

   
   Possible Ranges are:
   
   • 10.250.250.x
   • 172.30.30.x
   • 192.168.250.x
   
   Advantage: Once you have made this change on your home network, you will never have conflicts in this network.
   Disadvantage: You will need to change the settings on your private network router once, this requires access and can take some time.
   What to do:
   
   • Login to your home router
   • Find the setup section with “DHCP” settings.
   • Change your router to a different IP adress (for example an address from one of the ranges listed above, for example 172.30.30.1)
   • Change the DHCP Server Settings to the same range of your router (If your router IP is 172.30.30.1, your range could be 172.30.30.10 to 172.30.30.253){S_1183}
   
   After you have made these changes, there will be no more conflicts between your home and company network.{S_1184}

2. Force Traffic over VPN

   
   There may be situations where it's not possible to use the first option (for example if you're in a coffee shop or hotel) In this case you have the option to force the traffic over your VPN Network, this means your VPN Network (company network) will always win.
   Advantage: This setting is global, meaning no matter what network you are in you will always be able to connect.
   Disadvantage: Once you are connected to your company’s VPN, you can not access local service, like home router, local storages or printers.
   What to do:
   
   • Configure your VPN Tracker connection
   • Select the "Advanced" Tab at the top
   • In the "Traffic control" section, activate the Checkbox "Force traffic over the VPN if remote networks conflict with local networks"{S_1189}
   
   

Download VPN Tracker free

1. If you have connections or Shortcuts on your Mac that are stored in your Personal Safe, deactivate Personal Safe in preferences and create a local copy of your connections
2. Go to your Personal Safe webpage and delete your user keys: https://my.vpntracker.com/user/sync/keys
3. Sign out from your VPN Tracker account on your Mac, open Keychain Access, and delete the entry "Connection Safe Master Key."
4. Then sign back in and add a connection to your safe.
5. Don't forget to write down the new recovery key and keep it in a safe place. This will enable you to log in if you ever lose your login details.

Such a setup is called “Host to Everywhere” in VPN Tracker. All non-local traffic will be sent through the VPN. For this setup to work, it must be properly configured in VPN Tracker and on the VPN gateway:

1. The Network Topology must be set to “Host to Everywhere” in VPN Tracker
2. The VPN gateway must accept an incoming VPN connection with a 0.0.0.0/0 (= everywhere) endpoint

Once these are configured, it should already be possible to establish the VPN connection. However, it is very likely that Internet access will not yet work. For Internet access to work, several more things need to be configured on the VPN gateway:

1. The VPN gateway must route VPN traffic not destined for its local networks out on the Internet
2. This traffic must be subject to Network Address Translation (NAT) in order for replies to reach the VPN gateway
3. In many cases, a suitable remote DNS setup is necessary for DNS resolution to continue to work

Note that not alll VPN gateways can be configured for Host to Everywhere connections. Most devices designed for small office or home networks (e.g. devices by NETGEAR or Linksys) are not capable of dealing with Host to Everywhere connections.

Parallels

Go to "Preferences" > "Network" in Parallels and change the DHCP ranges for Shared and/or Host-Only Networking so they no longer conflict with your VPN's remote network.

VMware Fusion

A PDF with instructions can be downloaded from the VMware community forums:

• VMware Fusion 3.x
• VMware Fusion 1.x/2.x

Due to a bug in macOS 13.4 you may encounter a System Extension issue when starting a VPN connection. Please update to VPN Tracker 23.1.4 which mitigates this issue.

Download latest VPN Tracker version

Note that in certain cases, you may still experience a System Extension issue when connecting to multiple VPNs. Restarting VPN Tracker will temporarily resolve the issue.

We are working on an additional update to work around this bug in macOS 13.4.

Current Firmware (Fireware XTM)

WatchGuard Firebox X Edge e-Series devices with Fireware XTM (Fireware 11) are fully supported in current versions of VPN Tracker. For details please see our configuration guide.

Older Firmware

Devices running an older firmware may often work using the following setup. Please note however that we can't guarantee that this setup will work in all cases.

Start by creating a new user on the Firebox Edge and then configure MUVPN support for this user.

In VPN Tracker, use a "Custom Connection" device profile as the basis for your new connection.

Map the WatchGuard settings to your VPN Tracker configuration as shown in the table below:

The following settings are independent of your specific MUVPN configuration:

• Local Identifier Type: Email (even if it is a name and not an email address)
• Exchange Mode: Aggressive
• Phase 1 Diffie-Hellman Group: Group 2 (1024 bit)
• Perfect Forward Secrecy (PFS): off

Finally make sure the that VPN Tracker's "Network" setting is set to "Host to Network", and the correct Remote Network (i.e. the network that you want connect to through the VPN) is used (e.g. 192.168.1.0/255.255.255.0).

VPN Tracker automatically stores a backup of all your VPN connections on your Mac. If you have inadvertently deleted a connection, or wish to revert to an earlier copy of a connection, you can manually restore the backup copy.

1. Turn off Personal Safe syncing

You need to deactivate Personal Safe for the connections you're trying to restore from your backup, to prevent unwanted changes being synced:

• Open VPN Tracker 365
• From the menu bar, choose: VPN Tracker 365 > Preferences > Personal Safe
• Uncheck the connections you want to restore from your backup
• Quit VPN Tracker 365

2. Restore from your Backup

• Open Finder and choose "Go" > "Go to Folder…" from the menu bar
• Enter this path and press Return:
  /Library/Application Support/VPN Tracker 365
• Rename your "etc" folder to "etc-backup" – for safekeeping
• Go into the "backup" folder

Here you'll see a number of backup folders, all organized and named by date.

• Move the "etc-date" folder you want to restore up one level into the main "VPN Tracker 365" folder
• Rename the folder your just moved to just "etc" (deleting the date)
• Open VPN Tracker 365

All of your connections will now be restored to their backed-up state.

3. Re-activate Personal Safe

• Choose: VPN Tracker 365 > Preferences > Personal Safe from the menu bar
• Check your connections, to add them to Personal Safe

Download VPN Tracker free

SonicWALL Simple Client Provisioning with VPN Tracker is available with all SonicWALLs running SonicOS 4.0 or newer and all editions of VPN Tracker.

If you are still using VPN Tracker 6 or earlier, Professional or Player Edition is required.

By default, traffic to the remote network cannot be sent through the VPN tunnel if it is using the same network as the local network.

Resolving a Network Conflict using Traffic Control

You can use Traffic Control and VPN Tracker will send non-essential local network traffic over the VPN.

Activate Traffic Control:
> Go to Advanced > Traffic Control
> Check "Force traffic over the VPN if remote networks conflict with local networks"

Note that you will never be able to reach the following addresses over VPN: The IP address of your local router, your DHCP server, and your DNS server(s). If you need to reach those IPs over VPN, you will have to resolve the network conflict instead of using Traffic Control. The same applies for any IPs that you need to reach locally and over VPN.

Resolving a Network Conflict Manually

You have two basic options for resolving a conflict:

1. Change the local network to use a different network address. In most situations, this will entail changing the LAN settings on the local router (including DHCP settings if DHCP is used).
2. Change the remote network to use a different network address. With most setups, this entails changing the LAN on the VPN gateway (including DHCP settings if DHCP is used), and changing the IPs used by devices on the VPN gateway's LAN (or triggering a DHCP refresh, if DHCP is used). If the LAN is used in the VPN settings (such as for policies or firewall rules), these will need to be changed as well. Finally, change the remote network in VPN Tracker to match the new settings

If you decide to change the remote network, it makes sense to choose a private network that less commonly used. According to our informal statistics, conflicts are least likely using these networks:

• Subnets of 172.16.0.0/12
• Subnets of 192.168.0.0/16, excluding 192.168.0.0/24, 192.168.1.0/24 and 192.168.168.0/24

If these are not an option, use a subnet of 10.0.0.0/8, excluding 10.0.0.0/24, 10.0.1.0/24, 10.1.0.0/24, 10.1.1.0/24. However, since wireless network operators sometimes choose to use the entire 10.0.0.0/8 network, the first two options are preferred.

If you have a more sophisticated VPN gateway, in particular a SonicWALL, you may be able to set up an alternative remote network on the VPN gateway that is mapped 1:1 through Network Address Translation (NAT) onto the actual network. Users can then connect to this network instead if they have a conflict of networks. We have a guide available that describes this approach for SonicWALL devices.

If the conflict is caused by virtual network interfaces (e.g. Parallels, VMware), see here for more information.

Some kinds of software may cause issues with VPN Tracker:

1. Personal Firewalls / Desktop Firewalls
2. Protection Software (e.g Virus Scanners, Malware Protection)
3. Other VPN Clients / VPN Software (for example NCP Client)

Personal Firewalls usually ask the user, if an app should be allowed to send network traffic. It’s important to grant VPN Tracker full network access. If you have already added rules for VPN Tracker, please whitelist VPN Tracker.

Protection Software often sees VPN traffic as a potential source of threat, as it isn’t able to analyze that traffic because of its very strong encryption. Please ensure VPN Tracker is ignored by any protection software running on your Mac and allow VPN traffic to pass through.

Other VPN clients should not be a problem, if they are designed to co-exist with othe VPN apps. Unfortunately, not all other clients are and some capture all VPN traffic as soon as they are installed, even if the app is not running.
In these situations, you may need to uninstall the VPN client - we also suggest asking the vendor to improve its “cooperation” with other VPN apps.

Here are some common examples of the types of apps mentioned above. If you are uncertain whether any of these applications may be installed on your system, try the following:

• Open the app “Terminal”
• Copy and paste the following command: kextstat | grep -v com.apple

You’ll get a list of all kernel extensions that are not from Apple. Just compare that list with the identifiers in parenthesis below:

• Little Snitch
  (at.obdev.nke.LittleSnitch)
   
• TripMode
  (ch.tripmode.TripModeNKE)
   
• Sophos Anti Virus
  (com.sophos.kext.oas, com.sophos.nke.swi)
   
• Symantec Endpoint Protection / Norton AntiVirus
  (com.symantec.kext.SymAPComm, com.symantec.kext.internetSecurity, com.symantec.kext.ips, com.symantec.kext.ndcengine, com.symantec.SymXIPS)
   
• Kaspersky Internet/Total Security
  (com.kaspersky.nke ,com.kaspersky.kext.kimul, com.kaspersky.kext.klif, com.kaspersky.kext.mark)
   
• Intego Mac Internet Security
  (com.intego.netbarrier.kext.network, com.intego.virusbarrier.kext.realtime, com.intego.netbarrier.kext.process, com.intego.netbarrier.kext.monitor)
   
• Fortinet FortiClient
  (com.fortinet.fct.kext.avkern2, com.fortinet.fct.kext.fctapnke)
   
• Cisco Advanced Malware Protection (AMP)
  (com.cisco.amp.nke, com.cisco.amp.fileop)
   
• TUN/TAP based VPN Clients
  (net.sf.tuntaposx.tap, net.sf.tuntaposx.tun)
   
• eset Security Products
  (com.eset.kext.esets-kac, com.eset.kext.esets-mac und com.eset.kext.esets-pfw)
   

IPsec VPN uses a different protocol (ESP) for the actual data transfer than for establishing the connection (IKE). Since the ESP protocol does not use network ports, NAT (Network Address Translation) routers may have difficulties handling it correctly. Only NAT routers that support "IPSec Passthrough" (sometimes also named "VPN Passthrough" or "ESP Passtrhough") and where this option is also enabled, can handle ESP data packets.

To work around this problem, two alternative tunneling methods exist:

• NAT-Traversal (old, RFC draft version)
• NAT-Traversal (new, RFC standard version)

Which of these methods will work with your connection depends on two properties:

1. Which of these methods allows traffic to pass through your local Internet router.
2. Which of these methods are supported by your VPN remote gateway.

To test for the first property, VPN Tracker will automatically establish three VPN test connections to a VPN gateway hosted by us whenever it detects a new router that has not been tested before. One connection uses plain ESP, the other two either NAT-T method mentioned above. It will remember the test results for this router and take them into account whenever you start a connection from the network location. The reason we are testing with our own gateway is simply that the test requires a gateway supporting all three methods, with a known configuration and a simply way to verify if traffic did arrive at that gateway.

The second property is not tested in advance, VPN Tracker will become aware of that information when it actually tries to connect to your VPN gateway. VPN Tracker will compare the methods your gateway supports with the stored test results. If there is a match, a method that your gateway supports and that was also working during the test, this method will be used. If there is no match, VPN Tracker will immediately stop and show an appropriate error in the log, explaining the situation.

If you suspect a NAT-Traversal issue or you think the previous test results may be wrong or outdated, simply re-run the test:

‣ Make sure NAT-Traversal (Advanced tab) is set to Automatic
‣ Go to "Tools" > "Test VPN Availability"
‣ Click "Test Again"
‣ Wait until the test has completed, then connect to your VPN

The test dialog also allows you to tell VPN Tracker to not test the current location and forget any previously created test results. This is rarely needed and also not recommended but there might be situation where the test results are wrong because access to our VPN gateway is not possible (e.g. it is blocked) and thus the test result are just bogus and say nothing about the true capabilities of your VPN gateway.

Symptom

Solution

1. Do nothing; the conflict will persist until resolved.
2. The safe is right; the version from the safe is downloaded.
3. VPN Tracker is right; the version of VPN Tracker is written to the safe.

Reasoning

For a list of compatible devices, please refer to this page.

If you router is not in the list please refer to this FAQ and the VPN Tracker manual for help determining compatibility.

Please note that the local router (i.e. the router at the location where your Mac with VPN Tracker is) in most cases does not have to be specifically compatible with VPN or VPN Tracker. Almost all routers work fine with VPN Tracker.

A Technical Support Report contains your VPN Tracker settings and relevant network and system settings that our technical support team needs to be able to assist you quickly. Confidential data (e.g passwords, pre-shared keys, private keys) are not included in a Technical Support Report (TSR).

How to create a Technical Support Report:

‣ Click on your VPN connection in VPN Tracker 365.
‣ In the bottom right corner under the "Status" tab, you will see the TSR button.
‣ Click the button to generate the report and follow the instructions to send to our support team.

If you have an issue connecting to the VPN in the first place, please make a connection attempt right before creating the Technical Support Report, then create the Technical Support Report as soon as the connection attempt has failed.

If you can connect to the VPN, but something is not working right after the connection has been established, please establish the VPN connection, then create the Technical Support Report while the VPN is connected.

You can either email the report directly to our support team from VPN Tracker 365, or save it to email later or from a different computer, or to upload it using the contact form on our website:
{S_1181}

Whenever possible, also include screenshots of the VPN setup on your VPN gateway.

VPN Tracker is the market-leading VPN client for Mac OS X with support for IPsec, L2TP, PPTP und OpenVPN.

Information about VPN Tracker, including data sheets, can be found on the VPN Tracker website. A free trial is also available there.

There you can also find a list of compatible devices and configuration guides for 300+ VPN gateways.

To buy VPN Tracker now, go to the equinux Store.

Open the VPN Tracker 365 app and go to "VPN Tracker 365" > "Preferences"
Next to "Update", check the box "Get early access to Pre-Release versions"
From the drop down menu, select "Beta versions"