Re: VPN Error 721 on one machine, others work



On Tue, 27 Mar 2007 17:09:09 -0700, mwh wrote:

Hope somebody might have a kind word of two to help me out.

Two machines at home trying to connect to a new VPN (SBS connection
manager). Both had trouble, but reconfigured router, and now one works,
other doesn't.

Machine that doesn't connect returns Error 721. All S/W firewalls were
disabled. Thought error was perhaps due to wireless connection, but have
ruled that out. However, since other machine easily connects via same
router, should not be a router problem, right?

Furthermore, when I use "telnet <server> 1723" I can get telnet connection
on the working machine and on old Win2K that I brought out of mothballs to
simply test connectivity. Problem machine returns "could not open connection
to the host, on port 1723: connect failed"

Am now at a loss of where to turn. Have thought of reinstalling TCP/IP, but
am wary to do so.

Any thoughts?

Yea, how about telling us what router you are using?

Most of those cheap NAT routers, mistakenly called firewalls by vendors,
don't support multiple PPTP VPN tunnels and most don't support multiple
VPN PPTP tunnels to the same network at the same time from the same
location.

721 is almost always a GRE issue - and with you trying to do two PPTP to
the same server from the same network I can just about guess that it's the
cheap router.

--
Leythos
spam999free@xxxxxxxxxx (remove 999 for proper email address)
.



Relevant Pages

  • Re: Setting Up a VPN on W2000
    ... > accept only one connection at a time. ... I found on a Linksys router ... > wired one] that I had to disable SPI to allow pptp pass trough to work. ... > configure the connectoid on your client vpn to connect to your vpn server ...
    (microsoft.public.win2000.networking)
  • Re: Novice trying to setup VPN on XP with Linkys Router
    ... my office vpn on my laptop. ... I have even tried to delete the connection and adding it ... The modem is connected to a wireless router. ... home) and I want to use the Windows XP VPN feature. ...
    (microsoft.public.windowsxp.work_remotely)
  • RE: PPTP VPN connection problems
    ... But I do not think it is in the ADSL router itself. ... They do not say it but maybe they prohibit VPN connections ... fix IP for my connection – PPPoE/PPPoA) subscription at belgacom in Belgium ... | A ping to the server would result in "Request timed out". ...
    (microsoft.public.windows.server.sbs)
  • Re: Unable to make VPN connection to ISA 2006 Standard
    ... Router and the isa server this nat enabled, then the pptp tunnel will fail? ... If i initialize an vpn connection with a windows client, ...
    (microsoft.public.isa.vpn)
  • RE: VPN Connects once then Error 721
    ... connection, the connection fails and you receive an error 721. ... To verify whether the router is the root cause, ... Server to a simple hub and connect the client to the same hub. ... Configure the VPN connection on the client and do a VPN test. ...
    (microsoft.public.windows.server.sbs)

Loading