• A fix for Error 720: A Connection to the remote computer could not be established when trying to connect to a Windows 7 VPN

    by  • June 9, 2011 • windows 7 • 64 Comments

    I was recently re-setting up my Windows 7 VPN server and forgot an essential step that led me to get ‘Error 720: A Connection to the remote computer could not be established’ when trying to connect to it with Windows-based clients. Turns out you might need to assign an IP address range to the VPN server, by doing the following:
    1. Go into Network and Sharing Center > Change Adapter Settings
    2. Right click on Incoming Connection
    3. Click on the Networking tab and double click on the ‘Internet Protocol Version 4 (TCP/IPv4)’ checkbox


    4. Click the ‘Specify IP addresses’ and type an IP range that is in line with your current router setup (e.g. if your LAN is on a 192.168.11.x network, then you might want to set it as follows):

    You should now find, like me, that the VPN works once more! I’ll post up a tutorial on how I got it working and accessible to the public Internet soon.


    .NET developer at thetrainline.com, previously web developer at MRM Meteorite. Awarded a PhD in misbehaviour detection in wireless ad-hoc networks. A keen C# ASP.net developer bridging the gap with APIs and JavaScript frameworks, one web app at a time.


    64 Responses to A fix for Error 720: A Connection to the remote computer could not be established when trying to connect to a Windows 7 VPN

    1. Carl
      March 7, 2014 at 3:32 pm


      This fixed my problem too……why can’t Micro$oft just write usual error messages in the first place?

    2. Ed
      May 29, 2014 at 11:25 pm

      Thank you for this solution, my connection problem is fixed.

    3. Krista Little
      June 12, 2014 at 1:14 am

      Thank You! Thank You! Thank You!

    4. June 14, 2014 at 2:04 pm

      Pls wat abt for windows 8

    5. Zeka
      February 11, 2015 at 11:42 pm

      Worked for me too! Thanls

    6. Mark Jensen
      February 12, 2015 at 3:15 pm

      Fixed me, too – thanks!

    7. Luciano
      March 28, 2015 at 3:19 pm

      Thank you very much! Fixed my problem, trying to access my Windows 8.1 Pro machine, now VPN is working. I didn’t have this problem with Windows 7.

    8. kromatyc
      June 23, 2015 at 5:59 pm

      You are a lifesaver!!!

    9. Ken
      August 23, 2015 at 11:09 pm

      Thank you, worked for me.

    10. Miki
      October 5, 2015 at 10:03 am

      Thank you.

    11. Ashwin
      November 28, 2015 at 5:02 am

      Amazing !! Worked perfectly. Thanks very much

    12. Rene G.
      December 29, 2015 at 10:23 pm

      this solution is good, and fixed my problem. But this generate another problem, what if I try to connect from other Access Point where my computer have different IP?

    13. Tom
      January 29, 2016 at 5:05 pm

      Thanks!! This worked for me too as of Jan 29,2016..

      Very odd how I have been using this VPN for a year with no issues and all of a sudden this morning it stopped working and my employee couldn’t get into the vpn anymore.. It had been set up to get dhcp from the router.. Either windows ‘broke’ or the router stopped giving out dhcp addresses?

    14. Kaalus
      October 27, 2016 at 9:25 am

      Thanks for this simple solution! It works perfeclty for my Windows 10 1607 VPN setup (both server and client)

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