VPN connection failed-How to fix on Android, iOS and Windows

VPNs are generally used to hide IP, location, information of an internet user. There are also used for other purposes. Users can access resources like websites from a place where it is prohibited. Mostly used by gamers to play games which are available in a particular country.

Though VPN seems to be easy to use. It just needs to be connected and all is done. The VPN will hide your information. But, sometimes it becomes hard to connect to a VPN.

If you have a slow internet connection, using a VPN will make it slower.

It may be due to some security issue or network problems. Let discuss the reasons for VPN connection failure in detail. We will go one by one with Android, iOS and Windows devices.

Common VPN error codes

Error Code 800: This is one of the most common VPN errors. VPN 800 occurs when the remote connection was not made. This typically indicates that the VPN server might be unreachable hence the messages are failing to reach the server.

Error Code 609: A non-existing device type was specified.

Error Code 633: The modem or other connecting device is either already in use or not appropriately configured.

Error Code 0x80072746:

This is one of the common VPN errors when the existing connection is forcibly closed by the remote host.

error code 809: The network connection between your computer and the VPN server could not be established because the remote server is not responding.

Error Code 13801: Though it looks like an occasional error, 13801 is one of the most common VPN errors that users face. This error occurs when IKE authentication credentials are unacceptable.

Error Code 691: Some of the common VPN errors have solutions that even you can implement. Error code 691 is one of such solvable common VPN errors. The error occurs when the remote connection was denied because the user name and password combination you provided is not recognized, or the selected authentication protocol is not permitted on the remote access server.

Error Code 0x800704C9: This is one of the common VPN errors and it occurs if no SSTP ports are available on the server.

error code 789: the L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer.

Read: How to Watch Canadian Netflix in US?

How to fix VPN connection failed on Android?

Android is the most popular OS which is used by one-third of the mobile phone users of the world. On a mobile phone, VPN is used to access apps and games are available only in a particular country.

VPN can also be used on a mobile device to hide identity, especially if you are not logged in to an account.

ERROR: Cannot open TUN

1.Uninstall the VPN app and download again and try again to connect.

When your device is missing the “TUN driver”

1. Install a compatible TUN driver for your device. Note: this is only applicable for rooted devices.

2. Upgrade your device to the latest OS release.

Command ‘11192 interface fwmark rule add tun0’ failed with ‘400 11192 Failed to add fwmark rule (Device or resource busy)’

1. Reboot your device and try connecting to a VPN server.

P:write UDP [ECONNREFUSED]: Operation not permitted (code=1)

Go to your Android device’s Settings>>Select Battery from the Device settings list>>Tap on Battery optimization (or App optimization, per your device)>>Select All apps from the drop-down menu (i.e. by default, Not Optimized is selected)>>Scroll down and find and select your VPN from the listed applications>>Select Don’t optimize and then tap on Done>>Re-launch the VPN, and then try connecting again to the VPN

Three Popular free VPN for Android

Nord VPN

NordVPN protects your internet traffic with cutting-edge security technologies, ensuring strong and reliable encryption between your device and a VPN server. By default, NordVPN apps use AES (Advanced Encryption Standard) with 256 bit-keys – also used by the US government to secure classified information and by the NSA to protect national security data.

NordVPN is based away from the EU and US jurisdictions and has no obligation to collect your personal information. That means they don’t record, monitor, store, log or share anything you do.


Watch, listen, stream, and enjoy content from censored and blocked websites around the world, even while traveling. Choose from 160 VPN server locations in 94 countries all over the world. Switch as often as you like, with no limits. ExpressVPN has award-winning software for Windows, Mac, iOS, Android, Linux, routers, game consoles, and smart TVs. Real humans are available 24/7 via email and live chat to help you with setup and troubleshooting (paid feature). Click To know about all the features of ExpressVPN.


If your connection gets disrupted for any reason, TunnelBear will block all unsecured traffic until it’s safely reconnected. The positive side of TunnelBear you can always remain online just Set to launch at startup, stay connected without worrying about re-connecting on restart.

No login required. TunnelBear does NOT log any activity of customers connected to the TunnelBear network. Find all the features of TunnelBear here.

How to fix VPN connection failed on iOS?

On iOS, due to security reasons, you may face many problems. iOS is more secure than any other OS. You may face problems like connectivity restrictions, network error. Try fixing with following solutions.

  1. Tap the switch to abort the connection process
  2. Open the Settings app and navigate to Settings > General > Reset
  3. Tap on Reset Network Settings
  4. Reboot your device; make sure your Wifi is connected
  5. Try connecting the app again

Three Popular VPN for iOS

VPN Proxy Master

Faster, smoother and easier to use. It is the best proxy VPN client for WiFi hotspot security and privacy protection. It is free to use and provides unlimited VPN. VPN Proxy Master gives a high VPN speed and encrypted VPN connection to your iPhone. The best VPN for school wifi.


They use bank-grade encryption to ensure that your information is protected by the highest-quality technology. With servers in 28 countries, SurfEasy gives you both privacy and access to regional content. SurfEasy’s Tracker blocking algorithm blocks tracking cookies used by advertisers to follow you online, giving you a private and peaceful online experience.


They use AES-256 cipher with SHA512 auth and a 4096-bit RSA key. Windscribe has one of the largest networks with Servers in over 60 countries and 110 cities. They provide static IPs, Some IPs are not meant to change, they just stay the same. Find the full features of Windscribe.

How to fix VPN connection failed on Windows?

Similarly, On a Windows device, VPN is used to access internet resources which are available in a particular country.

or to hide your online information like identity, locations, passwords, etc. from information lookers.

Most of the time on Windows, VPN is used while surfing the internet. If you are using browsers like chrome VPN plugins do create connection problems.

1. Just remove the plugin and install again and try.

2. Clear the cookies and try again.

3. Sometime it may be due to a poor internet connection, check your internet connection and try again.

You can use onion browser instead of a VPN while surfing the internet anonymously.

Three Popular VPN for Windows


Choose from over 5100 NordVPN servers in 60 countries and enjoy the fastest VPN experience. Nobody can see through the tunnel and get their hands on your internet data. NordVPN gives you peace of mind each time you use public Wi-Fi, access personal and work accounts on the road, or want to keep your browsing history to yourself. Read all the features of NordVPN.


CyberGhost VPN will automatically protect you every time you are connecting to a new WiFi or Internet connection. You will never be vulnerable, again, in a hotel, airport, restaurant, or any other new, public space.

CyberGhost VPN remains connected at any time, even when you’re away from your computer/mobile, so you don’t need to worry about your security whether you’re at home, traveling, using a public Wi-Fi or torrent streaming. CyberGhost VPN is 100{7dc6b57109584f6cf0f32ef1db2aa5bf48c0513368087ca0c8f505f7f173c803} customizable to choose your desired locations.


PureVPN has servers in 140+ countries to connect you to your favorite content. Download, browse, or stream; you remain worry-free since there are no data limits. You get a P2P-enabled service with dedicated and highly optimized servers for P2P file sharing. You get unlimited server switching to anonymize you, so your ISP is unable to throttle your internet speed. Read the full features of PureVPN.

If your internet connection is not working as expected, then I suggest doing a speed test to make sure that everything works properly.

Bottom Lines

All the tricks mentioned here may not work the same way on all devices. The Informations provided here are best to our knowledge. You if still face any problem let us know by commenting below.

1 thought on “VPN connection failed-How to fix on Android, iOS and Windows”

  1. Informative article! Since I am a total amateur, I failed to connect and setup Nord, however at that moment the friendly tech support helped me very fast and promptly, and now I’m using it to the fullest. It’s good that in the internet you can also find some help. Good job!


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