network only allows 1 outgoing pptp connection at a time ?

Hi,

Im having a strange problem again whereby my network is only allowing 1
outgoing pptp connection at a time. Im setup like this:

net
|
netgear router
|
firewall________dmz
|
firewall
|__________
| |
DNS lan clients

The lan clients are a mixture of 2000 and XP pro. When have about 50
external pptp services that we need to connect to now and again. When one
internal clinet connects to a remote pptp service the connection is fine
until another internal client connects to another remote pptp service - at
this stage the first clients connection drops.

Can anyone suggest where the problem may lie or suggest any troubleshooting
tips ?

(NOTE: i also host a pptp service but incoming connections are rare. I dont
think the incoming traffic is effected but im not 100% sure).

Thanks for your time.
Scott


.

Relevant Pages

  • only 1 pptp outgoing connection works - if 2 then one connection drops ?
    ... Im having a strange problem again whereby my network is only allowing 1 ... outgoing pptp connection at a time. ... external pptp services that we need to connect to now and again. ... until another internal client connects to another remote pptp service - at ...
    (microsoft.public.win2000.ras_routing)
  • PPTP Connection sharing behind NAT
    ... I would like to set up a Linux machine to route connections over a PPTP connection to a secondary ISP inside a pre-existing network, so that internal machines generally use the "standard" ISP connection, and others can be configured to use the Linux machine's PPTP connection as a gateway/tunnel for their internet access. ...
    (Security-Basics)
  • RE: Cannot create a VPN connection using PPTP from 2003 Server
    ... Run this command to install the WAN Miniport: ... If I pass a bad username or password the connection asks for the correct ... another server on the Internet by creating a VPN connection. ... connection uses PPTP and has been running fine until recently. ...
    (microsoft.public.windows.server.networking)
  • RE: PPTP VPN connection problems
    ... We have a tool called PPTPping, it may help you to narrow down the GRE 47 ... we will use PPTP Ping utility to determine whether any hardware ... | Thread-Topic: PPTP VPN connection problems ...
    (microsoft.public.windows.server.sbs)
  • Re: only 1 pptp outgoing connection works - if 2 then one connection drops ?
    ... It is probably the Netgear router. ... > 1 outgoing pptp connection at a time. ... i also host a pptp service but incoming connections are rare. ...
    (microsoft.public.win2000.ras_routing)