Full Fix: VPN does not work over 3G

Ivan Jenic
by Ivan Jenic
Troubleshooting Expert
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  • VPNs aren't supposed to works fine over Wi-Fi and cellular data network only.
  • If connecting to 3G turns into a problem, you’re entitled to suspect a faulty connection.
  • Take a look at our Troubleshooting Internet section for more quick solutions.
  • You may also bookmark our VPN Guides Hub in case of frequently experiencing similar issues.
VPN 3G issue

If your VPN does not work over 3G, this post is meant for you. As a quick reminder, 3G, short for the third generation, is the third generation of wireless mobile telecommunications technology.

In addition, it is the upgrade for 2G and 2.5G GPRS networks, for faster internet speed. Some Windows users reported that they were unable to use their VPN service over 3G.

This may be due to several reasons such as blockage by telecom operator, unsupported protocols, low speed, etc.

However, if your VPN does not work over 3G, Windows Report has compiled the following solutions for you.

What can I do if the VPN does not work over 3G?

  1. Change your VPN provider service (recommended)
  2. Check your Internet connection
  3. Reinstall the 3G stick software (modem)
  4. Manually configure DNS settings
  5. Change your telecom operator

1. Change your VPN provider service (recommended)

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2. Check your Internet connection

A quick fix for the VPN does not work over 3G problem is to check your Internet connection. Windows users reported that limited/inactive Internet connection can cause a VPN problem.

Hence, you need to test your Internet connection. In order to test your Internet connection, disconnect from the VPN service, and try to access any website on your web browser using the 3G Internet connection.

If you are unable to access the Internet while disconnected from the VPN, then you may need to consider changing your Internet connection mode to 4G, LAN, broadband, or Wi-Fi connection.

3. Reinstall the 3G stick software (modem)

  1. Go to Start > Control Panel.
  2. Right-click Start and select Programs and Features.vpn does not work over 3g
  3. Find your 3G software from the list of programs and select Uninstall.
  4. Follow the prompts to complete the uninstall of the 3G software.
  5. After the uninstall, insert the modem stick and follow the prompts to install the 3G software.
  6. Hence, connect to the internet and try to use the VPN afterward.

If your 3G connection mode is via a modem, then you may need to reinstall the stick software. This method is noted to have fixed the VPN does not work over the 3G problem.

Follow the above steps to reinstall your 3G software. Alternatively, you may also reinstall the VPN client on your PC, and then access the Internet afterward.

4. Manually configure DNS settings

Manually configuring your computer with other DNS server fixes the VPN does not work over 3G issues and helps you enjoy faster connection speeds.

Some computers may not automatically connect to the VPN DNS servers; hence you need to configure it with your VPN DNS servers’ IP addresses, manually. Here’s how to do it in Windows:

Open Network Connections settings

  1. Right-click Start and select Run.
  2. Type ncpa.cpl and click OK.
  3. In the Network connections window, find your usual connection.
  4. Right-click the connection and select Properties.

no internet over 3G

Set the DNS server addresses

  1. Double click Internet Protocol Version 4 (IPv4) or just Internet Protocol.
  2. Select Use the following DNS server addresses.
  3. Type these Google DNS server addresses: Preferred DNS server 8.8.8.8 and Alternate DNS server 8.8.4.4.DNS settings

If Google DNS is blocked, try the following: Neustar DNS Advantage (156.154.70.1 and 156.154.71.1) enter and press OK and Level3 DNS (4.2.2.1 and 4.2.2.2) enter and press OK.

5. Change your telecom operator

Some telecom operators in some countries do restrict usage of VPN most especially when you use it over 3G. However, not all telecom operators would exercise this strict restriction.

Hence, you may need to change your telecom operator to another one with lesser restrictions.

Meanwhile, if your VPN does not work over 3G after changing your telecom operator, you may need to contact your telecom operator customer service and ask for help in fixing the problem.

Let us know if any of these solutions helped fix the VPN does not work over 3G problem, by leaving a comment in the section below.

FAQ: Learn more about VPNs working over 3G

  • When using a VPN with 3G is my connection still encrypted?            

Yes, your connection is still encrypted even in these circumstances. Just make sure you choose a VPN that uses the latest encryption protocols (OpenVPN is mandatory).

  • Is there a VPN available for 3G?

Yes, there are a few VPNs such as PIA that work smoothly over 3G as well. You just need to switch between the protocols until finding the appropriate one.

  • Why doesn’t my VPN work on 3G data?

Internet connection is most likely the cause of your problem. Contact your 3G Internet provider with a request to open the ports for you and use these great tips to speed up the connection.

Editor’s Note: This post was originally published in April 2018 and has been since revamped and updated in May 2020 for freshness, accuracy, and comprehensiveness.