VPN TCP/IP CP reported error cp 31

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: monkeyboi (anonymous_at_discussions.microsoft.com)
Date: 08/26/04 

Date: Thu, 26 Aug 2004 11:32:25 -0700

Problem solved. The P.P.o.E. software, a.k.a. virtual
adapter was causing this problem to occur.

Had the end user uninstall P.P.o.E. software, move to a
Linksys router to handle the P.P.o.E. login (with PPTP
passthrough enabled) and everything turned out ok.

>-----Original Message-----
>I am running a Windows Server 2000 - SP4. RAS seems to
>be setup properly - clients can happily connect, pull
>DHCP relayed IP addresses from the network DHCP server,
>and resolve network hostnames while connected.
>
>But I have this one user who has decided to be a problem
>child -- When the MS client attempts to connect to the
>server they get the following error:
>
>Error Connecting to <vpn name>
>Checking network protocol connections... TCP/IP CP
>reported error 31: A device attached to the system is
not
>functioning.
>
>The problem child's OS is Windows 2000 Professional - SP
>4 and there is nothing obvious that sticks out, with the
>exception of the fact that they use SBC Yahoo! DSL
>software that creates that horrible P.P.o.E.
connection.
>I have other DSL P.P.o.E. DSL users that seem to login
>ok, though. DNS resolution and access to all outside
>application ports for this user seems pretty normal --
>there are no other glaring internet access or TCP/IP
>configuration issues for this person.
>
>I have descended into the darkest bowels of the MSKB and
>Google w/out an answer. If you can help me I will
follow
>you around and worship you and name my first offspring
>after you.
>
>Your devoted (and creepy) servant,
>
>-networking4dummies
>.
>

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