Milan Stanojevic – deputy editor-in-chief

  • The ability to bypass restrictions is one of the most important features of a VPN.
  • VPNs can easily bypass geo-blocking restrictions and ISPs by rerouting your connection.
  • But VPNs can also be blocked by firewalls, ISPs or even system administrators.
  • If you encounter an administrator-set block, follow the instructions in this guide to quickly unblock your VPN.

A Virtual Private Network (VPN) is one of the easiest ways to access geographically restricted or blocked websites. However, corporate, government and other institutional operators, including streaming sites, block the use of VPNs.

But even with these restrictions or blockages, there are still ways to easily bypass them while maintaining privacy and security.

VPN blocking is most often found in workplaces, schools/colleges/universities, in countries that want to control what their citizens consume and/or share, and in public places where WiFi is available on demand, such as hotels or airports.

To block VPNs, these agencies use sophisticated software with their firewalls to perform what is called deep packet inspection, which analyzes the nature and destination of data packets on the network.

This technique allows your ISP to distinguish between normal traffic from popular sites like social media channels or your web browser, your VPN, and thousands of other types of traffic.

Finally, the network restricts or blocks the traffic it is trying to control. Most people only use a VPN to prevent their sensitive information, such as location, web activity, IP address and other online activities, from being accessible by the ISP.

If you find that your VPN is being blocked by the administrator, try the following solutions to resolve the issue.

What can I do if my VPN is blocked?

1. Using a VPN service with obfuscation/stealth/port forwarding technology

Although using port 443 can help you bypass admin blocking, most VPN protocols have packet information headers that allow firewalls to recognize traffic as coming from the VPN.

By using a stealth or obfuscation VPN service, the connection can overwrite and/or obfuscate the packet data headers so that a fingerprint cannot be easily detected by the system and thus the traffic is blocked.

Some VPNs known to have this feature are Torguard, VyprVPN, IPVanish, Proxy.sh and VPN.ac, but you can always find others to use if it’s not these five.

Another good option to avoid admin blocking is to use a VPN that supports port forwarding technology, for example. B. Private Internet Access.

To enable port forwarding in PIA, simply disconnect from the VPN, right-click on the PIA system tray icon and select Settings ->Network ->Port forwarding request.

Once the option is set, you can connect to any of the port forwarding gateways in the list and your selection will be visible under the VPN IP address.

⇒ Install private Internet access

Another possible solution proposed by PIA is a configuration file that allows connection via OpenVPN using an IP address instead of a hostname in conjunction with TCP port 443.

You can also connect via L2TP or Wireguard.

Private Internet access

Switch from one secure VPN protocol to another and bypass administrator restrictions with PIA!

2. Change Registry Settings

  1. Right-click on Start and select Run.
  2. Type regedit and press Enter.
  3. This way, please:
    HKEY_LOCAL_MACHINEsoftwarepoliciesgooglechrome
  4. Delete the entire folder (Chrome) to remove all restrictions. You can also edit some of them if you don’t want to delete them all.

3. Start OpenVPN on port 443

This is the most commonly used port because it is the standard encryption protocol on the Internet, and since OpenVPN already uses the SSL encryption library, it passes through strict firewalls with deep packet inspection when using this port.

If your VPN is a premium paid service, you may be allowed to change the port number, or it may have dedicated servers that access port 443. Contact VPN support for help with configuration.

Message: One of the best VPN tools at the moment is CyberGhost for Windows. This tool has many useful security features and you can customize them for maximum optimization.

If your current VPN is still blocked by the administrator, we strongly recommend upgrading to the premium tool.

For maximum privacy and unblockability, you can use the Tor network to run your VPN, although this makes it practically very anonymous and unblockable.

The downside is that the VPN is routed through multiple proxy layers at different speeds, so you’re not even guaranteed 5MPBS if you choose this route.

Did these solutions help you? Let us know your comments in the section below.

FAQ : Learn more about VPN blocking

In fact, they can, and such restrictions are generally applied by government agencies or certain countries with information, such as B. the UAE, China or Russia. The most common technique used to block routed VPN traffic is deep packet inspection.

  • How to unblock an administrator-blocked website in Windows 10?

One way to solve this problem is to use VPNs that support obfuscation and/or stealth technology to make the headers of the packet data in the VPN protocols unrecognizable to firewalls.

  • How do I open a page blocked by the administrator?

You can switch between ports and VPN protocols; it is generally recommended to run OpenVPN on port 443. Of course, you must have a VPN that supports port forwarding technology for this to work. If not, this can also be done with a manual script.

Editor’s comment: This article was originally published in June 2018 and revised and updated to be current, accurate and complete in February 2021.

frequently asked questions

How do I unblock a VPN?

A guide to unlocking…

How do I unblock websites that have been blocked by an administrator?

Technical Information

Why is my VPN blocked?

IP blocking Many VPNs use shared IP addresses, so that everyone connected to a particular server has the same IP address. If this IP address is discovered, it can easily be blocked by a website or an Internet Service Provider (ISP).

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