Dropped Connections

[steve menard]

I have seen this due to non matching MTU settings


Trace Carpenter wrote:
> For years I've been battling a problem that no one seems to be able to solve.
>
> When using RealVNC we commonly encounter a dropped connection with the error
> message "Connection reset by peer (10054)."  When testing with TightVNC the
> error still occurs, but he message displayed by that program is "Error waiting
> for server message."
>
> According to much of what has been written by James Weatherall, the problem is
> usually attributed to a lack of bandwidth and it is suggested that a rate
> limit on mouse pointers be inacted. In our case, we commonly see it when going
> across a 100Mbps LAN at all three of our locations and when transversing a VPN
> tunnel between the LANS.  The VPN tunnel is a dedicated tunnel running between
> Sonicwall TZ170s and the pipe between the locations are T-1 so bandwidth seems
> to be an unlikely culprit.
>
> In a testing situation I have often left VNC sessions open for >24 Hours which
> have been stable when no one is using either computer.  The problem seems to
> occur most often when you have a session going between your workstation and a
> remote server, AND you are working on other things at the same time.  For
> example, while working on the remote machine you open another window on your
> local machine to enter some data and then go back to the remote machine
> window.  It is at that time you will see the failure.
>
> All machines are current class machines running at least 1.5 Gigs of memory
> and Windows XP Professional.
>
> There seem to be a few other threads with this exact same problem that have
> been tested in the same manner and have gotten the same error messages from
> the different VNC flavors, but I have yet to find a response to their request.
> Hopefully I've included enough details to help resolve this.
>
> Any insight would be greatly appreciated.
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