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Konstantinos Tsoukalas

Konstantinos is the founder and administrator of Since 1995 he works and provides IT support as a computer and network expert to individuals and large companies. He is specialized in solving problems related to Windows or other Microsoft products (Windows Server, Office, Microsoft 365, etc.).


  1. Zec
    August 4, 2017 @ 2:09 pm

    If you have auth probs, disable EAP. Was the final tweak I had to do.


  2. Alec Wood
    March 15, 2017 @ 5:10 pm

    PPTP does not allow the number of ports to be set to zero
    Any ideas?


    • lakonst
      March 16, 2017 @ 1:26 pm

      @Alec Wood: Set it to 1 (one).


    • Julio Amaral
      November 19, 2021 @ 1:23 am

      I had the same problem with the PPTP port, but I just carried on with the configuration and let it at 128. Then, I set up a VPN connection from a Windows XP machine and it worked!


  3. StephenB
    January 28, 2016 @ 11:02 pm

    THANK you! I trying to get this working, using a guide that left out the "Step 2. Assign IP addresses for VPN users" part, and was just about ready to start tearing my hair out.


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