A VPN or Virtual Private Network is a connection method that adds a layer of security and privacy to you internet connection. It is commonly used by corporations to protect sensitive data however using a VPN for personal use is becoming more popular. A user for example with a VPN installed on the PC or mobile device can have an IP address from a different location thus hiding the exact location. Although installing a VPN is quite easy, there are instances when certain issues can occur. In this latest installment of our troubleshooting series we will tackle the VPN error 806 on windows 10 issue. What to do when your Windows 10 computer gets the VPN error 806 Before performing any of the recommended troubleshooting steps listed below it\u2019s best to restart your computer and router first. This action refreshes the operating system and remove any corrupt temporary data that could be causing the problem. Open TCP Port 1723 The TCP Port 1723 is a Point-to-point tunnelling protocol that is often used by the VPN. Try to make sure that this port is open. Type the keyword "Firewall" in the search box, and select to open the Windows Defender Firewall with Advanced SecurityClick Inbound Rules on the left of that window.Click Action and select the New Rule optionSelect the Port option, and press the Next button.Select the TCP option if it\u2019s not already selected.Enter \u20181723\u2019 in the Specific local ports text box.Click Next and select the Allow the connection option.Press the Next button, and select all three of the check boxes shown in the snapshot directly belowClick Next to move to the final step. There you can enter anything in the text boxes, and press the Finish button. Check if the error 806 issue still occurs. Open Protocol 47 The 47 is an IP protocol number of Generic Routing Encapsulation and not a port number inside TCP or UDP header. This is a port that needs to be opened if you are using a VPN. Type the keyword "firewall" in the search box, and select to open the Windows Defender Firewall with Advanced SecurityClick Inbound Rules on the left of that window.Click Action and select the New Rule optionSelect the Custom option.Then click Protocol and Ports on the left of the window.Select GRE from the Protocol type drop-down menu.Then click Name and press the Finish button to close the wizard\u2019s window. Check if the VPN connection cannot be completed issue still occurs. Turn off the antivirus One of the most common factors that can cause this problem is the antivirus software installed in your computer. Try to disable the antivirus then check if you still experience the same problem. If you are using Windows Security Select Start\u00a0 - Settings\u00a0 > Update & Security\u00a0 - Windows Security - Virus & threat protection > Manage settingsSwitch Real-time protection to OFF. If you are using Avast Search for the Avast icon in your computer\u2019s system tray and right-click on it.Click on Avast shields control.Locate the options to disable the program \u2013 the options are to disable it for 10 minutes, an hour, until the computer is restarted or permanently (until you yourself turn it back on). Select whatever option suits you best and use it to disable the program. If you are using AVG Search for the AVG icon in your computer\u2019s system tray and right-click on it.Click on Temporarily disable AVG protection.Choose how long you want AVG to be turned off and whether you want AVG to disable its Firewall too.Click on OK to disable the antivirus program. If you are using McAfee Search for the McAfee Antivirus icon in your computer\u2019s system tray and right-click on it.Click on Exit.You should see a dialog box warning you that McAfee\u2018s protection will be turned off. Click on Yes in this dialog box to disable the antivirus program If the VPN error 806 does not occur after turning off the antivirus then I suggest that you turn on the antivirus then add your VPN to its exception list. Windows Defender Click the Windows button and in the search bar type \u201cWindows defender\u201dOpen the application named \u201cWindows Defender Security Center\u201d.Select the option \u201cVirus and threat protection\u201d.Go to Virus and Threat Protection Settings. Windows may prompt you to allow an administrator access to use this feature. If so, press Yes.Search the window which says \u201cAdd or remove exclusions\u201d. Click it and you will be navigated to a menu where you can add exclusions.Click on the option which says \u201cExclude a folder\u201d and navigate to your VPN directory. Once you reach the location select the folder and save changes. Bitdefender Open Bitdefender and go to the Protection Window by clicking the shield icon shown below in the picture.Click on the link which says View Modules.Click on the Settings icon which you can see on the upper right corner of the antivirus.Go to the Exclusions tab present in the window.Click on \u201cList of files and folders excluded from scanning\u201d.Click on the ADD button. Navigate to your VPN directory and select the folder to exclude it from the scanning process. You should also select the Both option before you add an exceptionClick Add and save changes.You can also add the VPN executable file in the exceptions list by clicking on \u201cList of processes excluded from scanning\u201d. Avast Antivirus Open the Avast interface.Click on Settings found at the bottom left corner of the screen.From Settings, browse to General and scroll down the options until you find Exclusions.Expand the section and you will see a dialogue where you can add global exceptions. Navigate to your Chrome\u00a0 directory using the option of Browse.Once you have selected the VPN\u00a0 folder, click on ADD found at the bottom left side of the screen. Press OK and it is now added to global exceptions of Avast antivirus. McAfee Antivirus Open McAfee Antivirus by clicking on its icon present on the toolbar on the bottom right side of your Windows.Click on Manage Security.Select the option of Schedule and run scans option present in the box of Virus and Spyware Protection.Select the option of Schedules scans from the list of options that follow. A new window will open and from there you will see the Add button present under the tab of Excluded Files and Folders. Select the VPN\u00a0 directory after clicking Add through the file explorer.Once you reach the location select the folder and Save changes. Kaspersky AV Open Kaspersky AV from the icon present in your taskbar at the bottom right of the screen.Navigate to the Settings menu.Select the tab of Additional and select the tab of Threats and Exclusions from the list of options given.Click on the Configure Exclusions present in the middle of the screen.Select the option of Add present in the bottom right of the screen.Now navigate to the VPN\u00a0 directory using the Browse button. Once you reach the location select the folder and save changes. Malwarebytes Open your Malwarebytes window by either clicking on the icon in the taskbar located at the bottom right side of the screen, or by clicking the Program\u2019s launch file.Once the program is opened, click on the Malware Exclusions tab located on the left side of the window.In this tab, you find an option which says \u201cAdd folder\u201d. Click it and you will be navigated to File Explorer from where you can select your VPN directory easily. Check if the VPN error 806 issue still occurs. Turn off the firewall Another factor that can cause his problem is when the Firewall of windows 10 will block the VPN. To check if this is what\u2019s causing the problem try to disable the firewall. Open up the command prompt make sure to select Run as Administrator.On the command prompt, Type netsh advfirewall set allprofiles state off then press the Enter key. This will turn off the firewall for the Private Network, Public Network In case you don\u2019t experience the problem in this mode then you should turn on the firewall then add the VPN to its exception list. To turn on the firewall just type netsh advfirewall set allprofiles state on then press the enter key at the command prompt. To add the VPN to the exception list Type "Windows Firewall" (without quotes) in the search input box.Select "Allow an app through the Windows Firewall" from the Search results pane.Tap or click the "Change Settings" button, and then select "Allow another app."Select your VPN and then choose "Add"Select "OK" to finish adding the VPN to the Windows Firewall. Check if the VPN error 806 issue still occurs.