Solved

PPTP VPN is slow

Posted on 2004-03-27
9
2,658 Views
Last Modified: 2007-12-19
ok, i have a w2k server and winxp pro as a client. It's very slow to download files from the server over pptp, what is the problem?
0
Comment
Question by:samis10
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
  • 2
9 Comments
 
LVL 10

Expert Comment

by:snerkel
ID: 10694593
You don't state the medium you are using, but for instance ADSL generally has faster upload rates than download rates, your VPN connection will have a maximum speed = lowest rate.

If VPN is through Internet, again the route between the two points can affect your speeds.
0
 

Author Comment

by:samis10
ID: 10697806
the server has 2.5 (UP/DOWN) and the client has 10mbps DOwn, 2.5mbps up. I don't think this is the problem

The vpn is through internet.
0
 
LVL 4

Accepted Solution

by:
lstonge earned 250 total points
ID: 10709481
Most windows tcpip settings are inadequate for wan/vpn. There are many tweaks to speed up tcpip over slow links (MTU, SizReqBuf, TCPWindowsize, Ack, etc) but if you tweak the server's tcpip you may have to tweak many clients also (lan or wan).

Luc

0
Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

 

Author Comment

by:samis10
ID: 10739031
this feels odd that vpn doesn't work without tweaks on windows...Any other suggestions?
0
 
LVL 10

Assisted Solution

by:snerkel
snerkel earned 250 total points
ID: 10741574
Istonge is right, if your MTU settings in PCs is not correct this can cause problems with any software traversing the internet.

http://www.dslreports.com/tweaks will test your current settings, you may find the suggested settings help.
0
 
LVL 4

Expert Comment

by:lstonge
ID: 10743678
Also be sure that SMB signing is off (this will slow incredibly netbios over wan). Check on server and stations:

HKLM\System\CurrentControlSet\Services\LanmanServer\Parameters\

REG_DWORD: RequireSecuritySignature=0
REG_DWORD: EnableSecuritySignature=0

and

HKLM\System\CurrentControlSet\Services\LanmanWorkstation\Parameters\

REG_DWORD: RequireSecuritySignature=0
REG_DWORD: EnableSecuritySignature=0

Do a net stop/start service "server" or reboot.

Luc
0

Featured Post

SharePoint Admin?

Enable Your Employees To Focus On The Core With Intuitive Onscreen Guidance That is With You At The Moment of Need.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When it comes to security, there are always trade-offs between security and convenience/ease of administration. This article examines some of the main pros and cons of using key authentication vs password authentication for hosting an SFTP server.
Most of the applications these days are on Cloud. Cloud is ubiquitous with many service providers in the market. Since it has many benefits such as cost reduction, software updates, remote access, disaster recovery and much more.
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question