Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am using pptp to access internet, I find that, the speed is about 200k/s if use pptp, the

speed is 1M/s without pptp. so how to raise the pptp speed? thanks!

share|improve this question
up vote 3 down vote accepted

This question doesn't really make sense. PPTP and the internet are two different things. Are you saying that you're connecting to a PPTP VPN, and when you do that, your internet is dropping to 200Kbps?

What happens when you join a VPN is that the OS assumes you want to send all traffic over this PPTP link and sets it to be your default gateway. This means that your internet traffic goes:

OS -> PPTP -> INTERNET -> REMOTE SITE -> (their network) -> INTERNET

Which is kinda silly when you think about it. What you really want it:

OS -> INTERNET for internet traffic, and then OS -> PPTP -> INTERNET -> REMOTE SITE only for the subnets that are on the other side of the VPN.

You make absolutally no mention of which OS you're on, so I'm going to assume Windows. To do this on Windows, you need to:

  1. Go to the properties of your PPTP connection
  2. Go to TCP/IP and click on Properties
  3. Go to the "Advanced" button
  4. Un-check the "Use default gateway on remote network" option

If you NEED to keep all your internet traffic going over the PPTP link, then there's nothing you can do, unless you also control the remote network on the other side of the PPTP link, in which case that's a different question.

share|improve this answer
Is it possible to allows the server to control WINS but not DNS? Or does it automatically have to do both? – geilt Jan 10 '15 at 14:48

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.